#421B15#421B15

#421B15 is a dark, moderate red. Relative luminance 0.020; OKLCH L 27.8% C 0.062 H 30.4°. Best body text is #FFFFFF at 15.01:1 contrast (WCAG AA passes).

Color values

HEX	#421B15
RGB	rgb(66, 27, 21)
HSL	hsl(8, 52%, 17%)
HSV	hsv(8, 68%, 26%)
CMYK	cmyk(0%, 59.1%, 68.2%, 74.1%)
CIE-LAB	lab(15.47, 18.30, 13.10)
CIE-LCH	lch(15.47, 22.51, 35.60°)
OKLab	oklab(27.82% 0.0535 0.0315)
OKLCH	oklch(27.82% 0.062 30.4)
XYZ	xyz(2.7743, 1.9966, 0.9486)
Luminance	0.0200 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#421B15 #153C42

analogous

#421526 #421B15 #423215

triadic

#421B15 #15421B #1B1542

tetradic

#421B15 #264215 #153C42 #321542

square

#421B15 #264215 #153C42 #321542

split-complementary

#421B15 #154232 #152642

monochromatic

#170907 #170907 #421B15 #702E24 #9F4133

Accessibility & contrast

On white

15.01

#421B15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#421B15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #421B15

15.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##421B15	#FFFFFF	#000000	##FFFFFF
##421B15	1.00	15.01	1.40	15.01
#FFFFFF	15.01	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#252214

Deuteranopia (green-blind)

#2E2A14

Tritanopia (blue-blind)

#49141A

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #421b15;
/* rgb */ color: rgb(66, 27, 21);
/* oklch */ color: oklch(27.8% 0.062 30.4);

Tailwind

colors: {
  custom: {
    50: '#7a5852',
    500: '#421b15',
    950: '#000000',
  },
}

SCSS

$custom: #421b15;
$custom-light: #7a5852;
$custom-dark: #000000;

JSON

{
  "hex": "#421b15",
  "rgb": {
    "r": 66,
    "g": 27,
    "b": 21
  },
  "hsl": {
    "h": 8,
    "s": 51.724,
    "l": 17.059
  },
  "oklch": {
    "l": 0.27824,
    "c": 0.06209,
    "h": 30.4
  },
  "luminance": 0.01996
}

Semantic roles & 50–950 ramp

primary

#421B15

secondary

#39717A

accent

#C8DB4D

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#0A0302

muted

#7C7878

Preview Lab

Preview with #421B15

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

Preview Lab → · Contrast checker → · Palette generator →