Closest web-safe match: #FF6633

Color Details and Palettes for #EF6C48

Details about the color Opulent Orange#EF6C48

Conversions, palettes, contrast & design ideas for this color.

Vermilion family Warm WCAG ink: dark
HEX #EF6C48 RGB rgb(239, 108, 72) HSL hsl(13, 84%, 61%) CMYK cmyk(0%, 55%, 70%, 6%)

Color profile

About Color Hex #EF6C48

#EF6C48 is a warm color from the Vermilion family, closest in name to “Opulent Orange”. In RGB it is rgb(239, 108, 72); in HSL, hsl(13, 84%, 61%).

The color Opulent Orange, with hexadecimal code #ef6c48, 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 Passion, Energy, Love, Excitement, Danger and Desire. 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 84%, this color is intensely vivid—demanding attention and ideal for focal elements like buttons, banners, and brand marks. At 61% lightness, it strikes an approachable, open balance—bright enough to feel welcoming yet substantial enough to carry visual weight. This color is ideal for designs that aim to express Passion, Energy, Love, Excitement, Danger, or Desire. It can be effectively used in web design, branding, and marketing materials to attract attention and convey specific messages.

Key facts

RGB 239, 108, 72 red · green · blue HSL 13° 84% 61% hue · sat · light HSV 13° 70% 94% design-app pickers CMYK 0 55 70 6 print inks, % Luminance 0.295 0 dark → 1 light On black 6.91:1 ✓ AA contrast ratio On white 3.04:1 ✕ AA contrast ratio Web-safe #FF6633 closest web-safe Best text black ideal foreground Character Vivid warm · vermilion family

The story of this color

History, Usage, Psychology & Design Ideas for #EF6C48

Opulent Orange (#EF6C48) belongs to the Vermilion 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

Vermilion—a brilliant red-orange pigment—was synthesized from mercury sulfide (cinnabar) as early as 8000 BC in Anatolia. Chinese artisans perfected synthetic vermilion around the 4th century BC, using it in lacquerware, seals, and religious manuscripts. In medieval Europe, vermilion illuminated the capital letters of sacred texts, literally giving us the word 'rubric' (from Latin ruber, red).

Design & Usage Tips

Vermilion bridges the intensity of red with the warmth of orange, making it ideal for food and beverage branding where appetite appeal matters. It pairs well with dark olive green for autumnal themes or with navy blue for a classic nautical palette. Avoid using vermilion for error states, as users may confuse it with orange warnings.

Positioned on the warm side of the color wheel (hue 13°), it naturally draws the eye and creates a sense of closeness—making it effective for calls to action, food photography, and hospitality branding. At 84% 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

Vermilion projects confidence, vitality, and creative ambition. Its warm red-orange lean makes it feel more approachable and less aggressive than pure red, which is why lifestyle and travel brands favor it for invitations to adventure.

At 61% lightness, it reads clearly on dark backgrounds and provides a welcoming, open feel in light-themed designs—versatile across both contexts.

Creative Design Ideas

Use vermilion as a header accent stripe above charcoal photography for editorial impact. In interior design, a single vermilion accent wall energizes a neutral room. For digital products, vermilion hover states on cards create engaging micro-interactions.

Every format

#EF6C48 Color Conversions

Every way to write Opulent Orange — one-tap copy on every format; tap on any card to learn what it is and when to use it.

12 formats
HEX Web
#EF6C48

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, 108, 72)

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(13, 84%, 61%)

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(13, 70%, 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(13 28% 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%, 55%, 70%, 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(68.43% 0.170 36.27)

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

OKLab Modern
oklab(68.43% 0.137 0.101)

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: 61.26, a: 48.22, b: 44.15

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

LCH Perceptual
L: 61.26, C: 65.38, H: 42.48

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

XYZ CIE Science
X: 42.13, Y: 29.54, Z: 9.61

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
15690824

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

Channel breakdown

RGB Color Percentages for #EF6C48

How much red, green and blue light mixes into Opulent Orange.

Red 239/255 57.0% Green 108/255 25.8% Blue 72/255 17.2%

Percentages show each channel's share of the total light (R + G + B) in Opulent Orange.

Ink coverage

CMYK Ink Levels & Print Guide for #EF6C48

Ink needed to reproduce Opulent Orange in four-color print. Heaviest ink: Yellow.

0% CYAN 55% MAGENTA 70% YELLOW 6% KEY

Print tip: treat these values as a starting point — final output depends on printer profile, paper stock and calibration.

Accessibility · WCAG

Luminance & Contrast for #EF6C48

How bright Opulent Orange is, and how far black and white text clear each WCAG bar.

Relative luminance 0.295
0 · dark1 · light

Contrast ratio · 1:1 → 21:1 (log scale)

Aa Black text 6.91:1 ✓ AA ✕ AAA ✓ Large
Aa White text 3.04:1 ✕ AA ✕ AAA ✓ Large

Developer shortcuts

Quick CSS Snippets for #EF6C48

Copy-and-paste CSS for Opulent Orange — per-line copy, or grab the whole block.

opulent-orange.css
background-color: #EF6C48;
color: #EF6C48;
border: 2px solid #EF6C48;
background-color: rgb(239, 108, 72);
background-color: hsl(13, 84%, 61%);
--color: #EF6C48;

Shades · light to dark

#EF6C48 Monochrome Palette

Lighter and darker steps of Opulent Orange — the color's full brightness range in one strip.

#FDF0ED
#FBDAD1
#F9C4B6
#F6AE9A
#F4987F
#F18263
#EF6C48
#CB5C3D
#A74C32
#833B28
#602B1D
#3C1B12
#180B07

The dot marks the original color. Hover any shade to copy its hex or open its color page.

Harmony · 180° apart

#EF6C48 Complementary Palette

Two colors opposite on the wheel — maximum contrast for attention-grabbing accents.

#EF6C48
#48CBEF

The dot marks the original color. Hover any shade to copy its hex or open its color page.

Harmony · adjacent hues

#EF6C48 Analogic Palette

Neighboring hues on the wheel — harmonious, calm combinations that feel unified.

#EF6C48
#EFC048
#EF4877
#CBEF48
#EF48CB
#77EF48
#C048EF

The dot marks the original color. Hover any shade to copy its hex or open its color page.

Harmony · 120° apart

#EF6C48 Triadic Palette

Three colors evenly spaced on the wheel — vibrant and energetic, yet balanced.

#EF6C48
#48EF6C
#6C48EF

The dot marks the original color. Hover any shade to copy its hex or open its color page.

Harmony · 90° apart

#EF6C48 Quad Palette

Four colors evenly spaced on the wheel (tetradic) — rich schemes with multiple accents.

#EF6C48
#77EF48
#48CBEF
#C048EF

The dot marks the original color. Hover any shade to copy its hex or open its color page.

Accessibility

Color Blindness Simulation for #EF6C48

How Opulent Orange reads across five kinds of color vision — a ✓ Friendly verdict means the color difference stays distinguishable for that vision type.

#EF6C48
#BEC853
#B6B551
#E85859
#858585
Normal vision full color Deuteranopia green weakness ✕ Not friendly Protanopia red weakness ✕ Not friendly Tritanopia blue-yellow weakness ✓ Friendly Achromatopsia total color blindness ✕ Not friendly

The dot marks the original color. Hover any shade to copy its hex.

Harmony overview

Color Harmonies for #EF6C48

The lead color from each harmony scheme, side by side — a shortcut to the full palettes above.

#48CBEF
#EFC048
#48EF6C
#77EF48
Complementary opposite hue Analogous adjacent hue Triadic 120° apart Tetradic (Quad) 90° apart

Perceptually nearby

#EF6C48 Nearby Colors

A step away in brightness, richness or shade — each still feels like the same color.

Melon#FF7755
Frozen Tomato#DD5533
Salmon Nigiri#FF8866
Bloody Salmon#CC4433
Tomato#FF6644
Sassy Salmon#EE7755
Sweet Potato#DD7733
Flattered Flamingo#EE6655

From the color-name library

Colors Similar to #EF6C48

The closest named colors to #EF6C48 — same mood, each with its own character.

Opulent Orange#F16640
Firecracker#F2643A
Halloween#FE653C
Royal Blush#F26E54
Sweet Pimento#FE6346
Orange Soda#FA5B3D
Jelly Slug#DE6646
Heirloom Blush#E3664C
Flaming Orange#EE6633
Sassy Salmon#EE7C54
Melon#FF7855
Carrot#FD6F3B

Looking for more Orange shades? Browse Orange colors →

Inspiration

Explore Vibrant Images Featuring Opulent Orange (#ef6c48)

Curated Unsplash photos that carry the mood of Opulent Orange — hover any tile to download it or view the original.

Good to know

Frequently Asked Questions about #EF6C48

#EF6C48 is a warm color from the Vermilion family. Its closest matched name is “Opulent Orange”, matched perceptually with the CIEDE2000 color-difference formula. In RGB it is rgb(239, 108, 72); in HSL, hsl(13, 84%, 61%).
In RGB, #EF6C48 is rgb(239, 108, 72); in HSL it is hsl(13, 84%, 61%); and in CMYK — the model used for print — it is cmyk(0%, 55%, 70%, 6%).
#EF6C48 has a contrast ratio of 6.91:1 against black and 3.04:1 against white. For readability, black body text meets the WCAG AA threshold of 4.5:1 on it, while white does not.
The direct complement of #EF6C48 is #48CBEF (opposite on the color wheel). For ready-made combinations, this page includes monochrome, analogous, triadic and tetradic palettes built from #EF6C48 in the palette sections above.