#42101A#42101A

#42101A is a dark, moderate red. Relative luminance 0.016; OKLCH L 26.2% C 0.077 H 12.4°. Best body text is #FFFFFF at 15.90:1 contrast (WCAG AA passes).

Color values

HEX	#42101A
RGB	rgb(66, 16, 26)
HSL	hsl(348, 61%, 16%)
HSV	hsv(348, 76%, 26%)
CMYK	cmyk(0%, 75.8%, 60.6%, 74.1%)
CIE-LAB	lab(13.25, 24.92, 6.57)
CIE-LCH	lch(13.25, 25.77, 14.77°)
OKLab	oklab(26.19% 0.0753 0.0166)
OKLCH	oklch(26.19% 0.077 12.4)
XYZ	xyz(2.6187, 1.6038, 1.1487)
Luminance	0.0160 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42101A #104238

analogous

#421033 #42101A #421F10

triadic

#42101A #1A4210 #101A42

tetradic

#42101A #334210 #104238 #1F1042

square

#42101A #334210 #104238 #1F1042

split-complementary

#42101A #10421F #103342

monochromatic

#19060A #19060A #42101A #731C2D #A52841

Accessibility & contrast

On white

15.90

#42101A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#42101A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42101A

15.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42101A	#FFFFFF	#000000	##FFFFFF
##42101A	1.00	15.90	1.32	15.90
#FFFFFF	15.90	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1C1A

Deuteranopia (green-blind)

#292619

Tritanopia (blue-blind)

#490714

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #42101a;
/* rgb */ color: rgb(66, 16, 26);
/* oklch */ color: oklch(26.2% 0.077 12.4);

Tailwind

colors: {
  custom: {
    50: '#7a5256',
    500: '#42101a',
    950: '#000000',
  },
}

SCSS

$custom: #42101a;
$custom-light: #7a5256;
$custom-dark: #000000;

JSON

{
  "hex": "#42101a",
  "rgb": {
    "r": 66,
    "g": 16,
    "b": 26
  },
  "hsl": {
    "h": 348,
    "s": 60.976,
    "l": 16.078
  },
  "oklch": {
    "l": 0.26194,
    "c": 0.07711,
    "h": 12.4
  },
  "luminance": 0.01603
}

Semantic roles & 50–950 ramp

primary

#42101A

secondary

#327C6D

accent

#E4C444

background

#F7F4F5

surface

#EEE7E8

border

#C9C3C4

text

#0A0203

muted

#7C7878

Preview Lab

Preview with #42101A

Body copy rendered with the generated semantic roles for this colour.

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