#42121D#42121D

#42121D is a dark, moderate red. Relative luminance 0.017; OKLCH L 26.6% C 0.075 H 9.9°. Best body text is #FFFFFF at 15.72:1 contrast (WCAG AA passes).

Color values

HEX	#42121D
RGB	rgb(66, 18, 29)
HSL	hsl(346, 57%, 16%)
HSV	hsv(346, 73%, 26%)
CMYK	cmyk(0%, 72.7%, 56.1%, 74.1%)
CIE-LAB	lab(13.71, 24.23, 4.99)
CIE-LCH	lch(13.71, 24.73, 11.64°)
OKLab	oklab(26.56% 0.0735 0.0128)
OKLCH	oklch(26.56% 0.075 9.9)
XYZ	xyz(2.6851, 1.6799, 1.3450)
Luminance	0.0168 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42121D #124237

analogous

#421235 #42121D #421F12

triadic

#42121D #1D4212 #121D42

tetradic

#42121D #354212 #124237 #1F1242

square

#42121D #354212 #124237 #1F1242

split-complementary

#42121D #12421F #123542

monochromatic

#18070B #18070B #42121D #721F32 #A22C47

Accessibility & contrast

On white

15.72

#42121D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#42121D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42121D

15.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42121D	#FFFFFF	#000000	##FFFFFF
##42121D	1.00	15.72	1.34	15.72
#FFFFFF	15.72	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1D1D

Deuteranopia (green-blind)

#29271C

Tritanopia (blue-blind)

#490A16

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #42121d;
/* rgb */ color: rgb(66, 18, 29);
/* oklch */ color: oklch(26.6% 0.075 9.9);

Tailwind

colors: {
  custom: {
    50: '#7a5358',
    500: '#42121d',
    950: '#000000',
  },
}

SCSS

$custom: #42121d;
$custom-light: #7a5358;
$custom-dark: #000000;

JSON

{
  "hex": "#42121d",
  "rgb": {
    "r": 66,
    "g": 18,
    "b": 29
  },
  "hsl": {
    "h": 346.25,
    "s": 57.143,
    "l": 16.471
  },
  "oklch": {
    "l": 0.26561,
    "c": 0.07461,
    "h": 9.9
  },
  "luminance": 0.0168
}

Semantic roles & 50–950 ramp

primary

#42121D

secondary

#357B6B

accent

#E0BD47

background

#F7F4F5

surface

#EEE7E9

border

#C9C3C5

text

#0A0203

muted

#7C7878

Preview Lab

Preview with #42121D

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

Preview Lab → · Contrast checker → · Palette generator →