About Color Hex #efae37

The color Tonkatsu, with hexadecimal code #efae37, sits in the orange color family, typically linked to enthusiasm, creativity, and warmth. Orange hues stimulate appetite and social interaction, which is why food brands and community platforms favor them. Additionally, it evokes emotions such as Creativity, Success, Encouragement, Stimulation and Vitality. Orange is associated with spirituality and courage in some cultures, such as in Hinduism and Buddhism. In Western cultures, it often represents autumn, harvest, and creativity. With a high saturation of 85%, this color is intensely vivid—demanding attention and ideal for focal elements like buttons, banners, and brand marks. With a mid-range lightness of 58%, it offers excellent versatility—readable as text on light backgrounds and visible as an element on dark ones. This color is ideal for designs that aim to express Creativity, Success, Encouragement, Stimulation, or Vitality. It can be effectively used in web design, branding, and marketing materials to attract attention and convey specific messages.

The RGB values for Tonkatsu are (239, 174, 55), providing a combination of red: 239, green: 174, and blue: 55. In HSL format, it has a hue of 39.00°, saturation of 85.00%, and lightness of 58.00%.

The HSV representation includes a hue of 39.00°, saturation of 77.00%, and value of 94.00%. Its CMYK composition is cyan: 0.00%, magenta: 27.00%, yellow: 77.00%, and black: 6.00%.

The calculated luminance of #efae37 is 0.489, offering a brightness level suitable for various design requirements.

This color is not part of the web-safe color palette. The closest web-safe color to this is the color HEX #FF9933. Its contrast ratio is 10.78:1 against black and 1.95:1 against white. It works well on dark backgrounds but may be less readable on lighter ones.

In terms of color temperature, #efae37 reads as warm. When it comes to accessibility, testing against standard guidelines suggests that using black text meets typical WCAG contrast standards. Additionally, the ideal foreground color for improved legibility on #efae37 is black.

Considering its saturation and lightness, #efae37 appears more vivid and energetic, making it stand out in designs that aim to capture attention.

History, Usage, Psychology & Design Ideas for #EFAE37

Tonkatsu (#EFAE37) belongs to the Orange color family.

This vivid mid-tone strikes the ideal balance between intensity and readability, making it a strong candidate for primary brand colors, interactive UI elements, and logo design where immediate recognition is essential.

Historical Background

Orange as a distinct color name entered the English language in the 16th century, borrowed from the Sanskrit word for the fruit. In Buddhist tradition, saffron-orange robes signify renunciation and spiritual seeking. Dutch royalty adopted orange as a national symbol through the House of Orange-Nassau, and the color remains central to the Netherlands' national identity and celebrations.

Design & Usage Tips

Orange radiates warmth and sociability, making it effective for calls to action, subscription prompts, and community-oriented brands. It pairs beautifully with deep blue for complementary contrast or with cream for a softer, artisanal look. Avoid pairing orange with red, as the two can visually clash at similar saturation levels.

Positioned on the warm side of the color wheel (hue 39°), it naturally draws the eye and creates a sense of closeness—making it effective for calls to action, food photography, and hospitality branding. At 85% saturation, this is a highly vivid color that demands attention. Use it where maximum visual impact is needed—feature banners, accent buttons, and data-visualization highlights.

Psychological Impact

Orange stimulates enthusiasm, creativity, and appetite—which is why food delivery apps and restaurant chains frequently feature it. It signals fun and accessibility, lowering barriers to engagement. Too much orange can feel overwhelming, so balance it with generous white space.

With a mid-range lightness of 58%, this tone is highly versatile: dark enough to serve as body text on white, yet light enough to stand out on charcoal or navy backgrounds.

Creative Design Ideas

Create vibrant gradient backgrounds transitioning from orange to yellow for summer campaign landing pages. Use burnt orange with charcoal typography for a sophisticated autumn editorial palette. In app design, orange notification badges on a dark interface draw the eye immediately.

#EFAE37 Color Conversions

Every way to write Tonkatsu — copy Tonkatsu as RGB, HSL, HSV, HWB, CMYK, OKLCH, OKLab, CIELAB, LCH, XYZ or a decimal integer. One-tap copy on every format; tap on any card to learn what it is and when to use it.

12 formats
HEX Web
#EFAE37

Hexadecimal is the web’s universal color notation — two digits each for red, green and blue. Drop it straight into HTML, CSS or any design tool.

RGB Screen
rgb(239, 174, 55)

RGB is the additive Red-Green-Blue model every screen uses to emit light. The default choice for websites, apps and on-screen UI.

HSL Web
hsl(39, 85%, 58%)

HSL breaks a color into Hue, Saturation and Lightness — the most intuitive way to lighten, darken or mute a color in CSS.

HSV HSB Design
hsv(39, 77%, 94%)

HSV (also called HSB) maps Hue, Saturation and Value/Brightness. It is the model behind the color pickers in Photoshop, Figma and most design apps.

HWB CSS 4
hwb(39 22% 6%)

HWB blends a pure hue with Whiteness and Blackness — a painter-friendly model added in CSS Color 4 for quick tints and shades.

CMYK Print
cmyk(0%, 27%, 77%, 6%)

CMYK is the subtractive Cyan-Magenta-Yellow-Black ink model. Use these values when preparing artwork for a printer or commercial press.

OKLCH Modern
oklch(79.28% 0.148 77.96)

OKLCH is a modern, perceptually-uniform space (Lightness, Chroma, Hue). It powers smooth gradients and accessible palettes in today’s CSS.

OKLab Modern
oklab(79.28% 0.031 0.145)

OKLab is the Cartesian form of OKLCH — ideal for blending and interpolating colors without the muddy midpoints older spaces produce.

CIELAB L*a*b* Perceptual
L: 75.39, a: 13.50, b: 66.31

CIELAB is a device-independent, perceptually-uniform space. It is the standard for measuring color difference (ΔE) and matching across devices.

LCH Perceptual
L: 75.39, C: 67.67, H: 78.49

LCH is CIELAB in cylindrical form — Lightness, Chroma and Hue — letting you adjust vividness and hue while staying perceptually even.

XYZ CIE Science
X: 51.42, Y: 48.90, Z: 10.34

CIE XYZ is the 1931 master space that underpins every other model here — the scientific bridge used to convert between color systems.

Decimal int Code
15707703

The 24-bit integer value of the color — handy for databases, APIs, game engines and low-level graphics code.

RGB Color Percentages for #efae37

RGB Color Percentages for Tonkatsu (HEX Code: #efae37) display the relative contribution of Red, Green, and Blue in forming the color. Understanding these percentages provides insight into the color's visual balance and primary components.

This color is primarily dominated by Red, making up 51.07% of the total composition. The complete breakdown of RGB contributions is:

Red:
51.07%
Green:
37.18%
Blue:
11.75%

This analysis highlights the influence of each primary color, offering a deeper understanding of the visual characteristics of Tonkatsu.

CMYK Ink Levels & Print Guide for #efae37

CMYK Ink Levels for Tonkatsu (HEX Code: #efae37) provide a breakdown of the percentages of Cyan, Magenta, Yellow, and Black inks needed for accurate print reproduction. The composition of Tonkatsu prominently features Yellow, reflecting its dominant color characteristic. This information is invaluable for optimizing ink usage and achieving precise color results in printed materials.

The exact CMYK values are: Cyan: 0%, Magenta: 27.2%, Yellow: 76.99%, and Black: 6.27%.

Luminance & Contrast for #EFAE37

Relative luminance gauges how bright Tonkatsu is, while the WCAG contrast ratios show how legible black or white text is on it — and which accessibility levels (AA / AAA) it passes.

Relative luminance 0.489
0 · dark1 · light
Aa
Black text 10.78:1
AA AAA Large
Aa
White text 1.95:1
AA AAA Large

Quick CSS Snippets for #EFAE37

Copy-and-paste CSS for Tonkatsu — backgrounds, text, borders and a custom property. Each line is ready to drop into your stylesheet.

Background background-color: #EFAE37;
Text color: #EFAE37;
Border border: 2px solid #EFAE37;
RGB background-color: rgb(239, 174, 55);
HSL background-color: hsl(39, 85%, 58%);
Variable --color: #EFAE37;

#efae37 Monochrome Palette

The Monochrome Palette consists of shades created by adjusting the brightness. These include lighter, original, and darker shades of the color. This layout helps to visualize the color's range and its potential use in design.

#fdf7eb
#fbebcd
#f9dfaf
#f6d291
#f4c673
#f1ba55
#efae37 Original
#cb942f
#a77a27
#83601e
#604616
#3c2c0e
#181106

#efae37 Complementary Palette

The Complementary Palette is made up of two colors that sit opposite each other on the color wheel. These colors create high contrast and vibrant designs, making them perfect for attention-grabbing elements and dynamic visuals.

#efae37 Original
#3979ef

#efae37 Analogic Palette

The Analogic Palette consists of colors that are next to each other on the color wheel. These colors typically create harmonious and subtle designs, often used to evoke calmness and unity in your visual projects.

#efae37 Original
#d4ef39
#ef5439
#79ef39
#ef3979
#39ef54
#ef39d4

#efae37 Triadic Palette

The Triadic Palette is made up of three colors evenly spaced on the color wheel. This combination provides a vibrant and balanced color scheme, often used for dynamic and energetic designs while maintaining harmony.

#efae37 Original
#39efaf
#af39ef

#efae37 Quad Palette

The Quad Palette, also known as tetradic, consists of four colors evenly spaced on the color wheel. This combination offers a diverse and bold color scheme, ideal for creating rich, complex designs with multiple accents while still maintaining balance.

#efae37 Original
#39ef54
#3979ef
#ef39d4

Color Blindness Simulation for #efae37

Colors are perceived differently by individuals with various forms of color blindness. Use the dropdown below to see how this color may look through the eyes of someone with color vision deficiency. Explore how Tonkatsu (#efae37) might appear to people with different visual experiences, and gain deeper insights into color accessibility for your designs!

Each color box displays a "Friendly" or "Not Friendly" tag in the bottom-right corner. A "Friendly" tag indicates that the color difference is distinguishable to individuals with the specific type of color blindness. Conversely, a "Not Friendly" tag means that the color difference might not be distinguishable, potentially causing accessibility issues in your design.

Normal Vision

Deuteranopia (Green Weakness)

Not Friendly

Protanopia (Red Weakness)

Not Friendly

Tritanopia (Blue-Yellow Weakness)

Not Friendly

Achromatopsia (Total Color Blindness)

Not Friendly

Color Harmonies for #efae37

Color harmonies refer to the visually pleasing combinations of colors that are derived from specific relationships on the color wheel. These harmonious schemes, such as complementary, triadic, and analogous colors, create a balanced and engaging visual experience in design.

Complementary

Analogous

Triadic

Tetradic (Quad)

#EFAE37 Nearby Colors

A handful of colors just a step away from #EFAE37 — each one nudges the brightness, richness, or shade a little while still feeling like the same color. Use the buttons on any swatch to copy its hex or open its full color page.

#ffbb44 Mango Latte
#dd9922 Tiger King
#ffcc55 Angry Pasta
#cc8811 Chicken Masala
#eeaa22 Groovy Giraffe
#eeaa44 Summer Glow
#ddbb33 Wax
#ffaa44 Five Star

Colors Similar to #efae37

These colors are close neighbours of #EFAE37 in the RGB color space. Each subtle variation can produce a noticeably different mood in your design while remaining harmonious with the original Orange tone.

#f0ae37 Tonkatsu
#efaf37 Tonkatsu
#efae38 Tonkatsu
#eeae37 Tonkatsu
#efad37 Tonkatsu
#efae36 Tonkatsu
#ffae37 Safflower
#efbf37 Nicotine Gold
#efae48 Yakitori
#deae37 Currywurst
#ef9d37 Nuclear Mango
#efae26 Cheesy Cheetah

Looking for more Orange shades? Browse Orange colors →

Explore Vibrant Images Featuring Tonkatsu (#efae37)

Discover a vibrant gallery of images that not only showcase the captivating hue of Tonkatsu, but also embody its unique mood and personality. Each carefully curated photo is selected to highlight the richness and diversity of this color, offering inspiration for design, art, and creative projects.