#42121A#42121A

#42121A is a dark, moderate red. Relative luminance 0.017; OKLCH L 26.5% C 0.074 H 13.9°. Best body text is #FFFFFF at 15.75:1 contrast (WCAG AA passes).

Color values

HEX	#42121A
RGB	rgb(66, 18, 26)
HSL	hsl(350, 57%, 16%)
HSV	hsv(350, 73%, 26%)
CMYK	cmyk(0%, 72.7%, 60.6%, 74.1%)
CIE-LAB	lab(13.63, 23.91, 7.08)
CIE-LCH	lch(13.63, 24.94, 16.50°)
OKLab	oklab(26.47% 0.0721 0.0178)
OKLCH	oklch(26.47% 0.074 13.9)
XYZ	xyz(2.6498, 1.6658, 1.1591)
Luminance	0.0167 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42121A #12423A

analogous

#421232 #42121A #422212

triadic

#42121A #1A4212 #121A42

tetradic

#42121A #324212 #12423A #221242

square

#42121A #324212 #12423A #221242

split-complementary

#42121A #124222 #123242

monochromatic

#180709 #180709 #42121A #721F2D #A22C40

Accessibility & contrast

On white

15.75

#42121A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#42121A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42121A

15.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42121A	#FFFFFF	#000000	##FFFFFF
##42121A	1.00	15.75	1.33	15.75
#FFFFFF	15.75	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1D1A

Deuteranopia (green-blind)

#2A2619

Tritanopia (blue-blind)

#490915

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #42121a;
/* rgb */ color: rgb(66, 18, 26);
/* oklch */ color: oklch(26.5% 0.074 13.9);

Tailwind

colors: {
  custom: {
    50: '#7a5356',
    500: '#42121a',
    950: '#000000',
  },
}

SCSS

$custom: #42121a;
$custom-light: #7a5356;
$custom-dark: #000000;

JSON

{
  "hex": "#42121a",
  "rgb": {
    "r": 66,
    "g": 18,
    "b": 26
  },
  "hsl": {
    "h": 350,
    "s": 57.143,
    "l": 16.471
  },
  "oklch": {
    "l": 0.26472,
    "c": 0.07426,
    "h": 13.9
  },
  "luminance": 0.01665
}

Semantic roles & 50–950 ramp

primary

#42121A

secondary

#357B6F

accent

#E0C747

background

#F7F4F5

surface

#EEE7E8

border

#C9C3C4

text

#0A0203

muted

#7C7878

Preview Lab

Preview with #42121A

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

Preview Lab → · Contrast checker → · Palette generator →