Carnelian (#B31B1B)

HEX, RGB, HSL, CMYK values + mood/style/use-case color tags. Use this page to keep your colors consistent across web and print.

Preview

Sample Text

This is how text may look on this color.

Best text color: #FFFFFF
Contrast vs white: 6.80:1 — vs black: 3.09:1

Color values

HEX #B31B1B
RGB rgb(179, 27, 27)
HSL hsl(0, 73%, 40%)
CMYK cmyk( 0, 85, 85, 30 )
Websafe #CC3333

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Tags

Mood

Energetic (215) Romantic (190)

Style

Vivid (210) Warm (180)

Use case

Text (210) Button (200) Accent (185)

Tip: tags are heuristic suggestions (helpful for browsing and inspiration).

Color Harmonies

Colors that pair well with #B31B1B based on color theory relationships.

Complementary

The color directly opposite on the color wheel — creates maximum contrast and vibrance.

Carnelian
#B31B1B Base

#1BB3B3

Analogous

Colors adjacent on the wheel — naturally harmonious and pleasing to the eye.

Carnelian
#B31B1B Base

#B31B67

#B3671B

Triadic

Three colors equally spaced 120° apart — bold, balanced, and visually rich.

Carnelian
#B31B1B Base

#1BB31B

#1B1BB3

Split-Complementary

Two colors flanking the complement — high contrast with less tension than full complementary.

Carnelian
#B31B1B Base

#1BB367

#1B67B3

Tetradic (Square)

Four colors at 90° intervals — rich variety, best when one color dominates.

Carnelian
#B31B1B Base

#67B31B

#1BB3B3

#671BB3

Monochromatic

Shades and tints of the same hue — cohesive, elegant, and easy to work with.

Carnelian
#B31B1B Base

#2E0707

#711111

#901616

#D62020

#E13939

#EB7C7C

Shades & Tints

Darker shades and lighter tints of Carnelian, generated by adjusting lightness while keeping the same hue and saturation.

Shades (darker)

— #160303

— #360808

— #550D0D

— #741212

— #941616

Carnelian #B31B1B Base

— #DE2727

— #E65858

— #ED8888

— #F4B8B8

— #FCE9E9

CSS & SCSS Snippets

Ready-to-use code snippets for #B31B1B. Click the copy button to copy any snippet to your clipboard.

/* Background */
.element {
    background-color: #B31B1B;
}

/* Text */
.element {
    color: #B31B1B;
}

/* Border */
.element {
    border: 1px solid #B31B1B;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #B31B1B,
        #1BB3B3
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #B31B1B,
        #1BB3B3
    );
}

// SCSS variable
$carnelian: #B31B1B;

// With RGB channels (useful for rgba() usage)
$carnelian-r: 179;
$carnelian-g: 27;
$carnelian-b: 27;

// Usage
.element {
    background-color: $carnelian;
    color: rgba($carnelian-r, $carnelian-g, $carnelian-b, 0.8);
}

Color Blindness Simulation

How Carnelian appears to people with different types of color vision deficiency.

Normal Vision #B31B1B How the color appears with full color vision.

Deuteranopia #686804 Deuteranopia affects ~8% of males. Green cones are absent, making it difficult to distinguish red from green. The most common form of color blindness.

Protanopia #45451E Protanopia affects ~1% of males. Red cones are absent, causing reds to appear dark and indistinguishable from greens and browns.

Tritanopia #B31B1B Tritanopia is rare (~0.003%). Blue cones are absent, making blue and yellow difficult to distinguish. Blues may appear green, yellows appear pink.

Achromatopsia #5B5B5B Achromatopsia is complete color blindness. The world is seen entirely in shades of grey. Affects ~1 in 30,000 people.

Similar Named Colors

The closest named colors to Carnelian ranked by perceptual difference (Delta-E 2000 — lower = more similar).

Carnelian #B31B1B Base

Firebrick #B22222 ΔE 1.35

International Orange (engineering) #BA160C ΔE 3.23

Upsdell Red #AE2029 ΔE 3.79

Venetian Red #C80815 ΔE 3.95

How to use this color

Copy HEX for CSS and design tools, or RGB/HSL for UI adjustments.
Use CMYK when preparing print assets (posters, packaging, brochures).
Check contrast before using it for text or important UI elements.