#421D21#421D21

#421D21 is a dark, muted red. Relative luminance 0.021; OKLCH L 28.5% C 0.057 H 14.6°. Best body text is #FFFFFF at 14.69:1 contrast (WCAG AA passes).

Color values

HEX	#421D21
RGB	rgb(66, 29, 33)
HSL	hsl(354, 39%, 19%)
HSV	hsv(354, 56%, 26%)
CMYK	cmyk(0%, 56.1%, 50%, 74.1%)
CIE-LAB	lab(16.24, 18.35, 5.63)
CIE-LCH	lch(16.24, 19.20, 17.05°)
OKLab	oklab(28.5% 0.0555 0.0145)
OKLCH	oklch(28.5% 0.057 14.6)
XYZ	xyz(2.9608, 2.1471, 1.6970)
Luminance	0.0215 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#421D21 #1D423E

analogous

#421D33 #421D21 #422B1D

triadic

#421D21 #21421D #1D2142

tetradic

#421D21 #33421D #1D423E #2B1D42

square

#421D21 #33421D #1D423E #2B1D42

split-complementary

#421D21 #1D422B #1D3342

monochromatic

#15090B #170A0C #421D21 #6D3036 #97424C

Accessibility & contrast

On white

14.69

#421D21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#421D21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #421D21

14.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##421D21	#FFFFFF	#000000	##FFFFFF
##421D21	1.00	14.69	1.43	14.69
#FFFFFF	14.69	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#252421

Deuteranopia (green-blind)

#2E2B20

Tritanopia (blue-blind)

#48181F

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #421d21;
/* rgb */ color: rgb(66, 29, 33);
/* oklch */ color: oklch(28.5% 0.057 14.6);

Tailwind

colors: {
  custom: {
    50: '#795a5c',
    500: '#421d21',
    950: '#000000',
  },
}

SCSS

$custom: #421d21;
$custom-light: #795a5c;
$custom-dark: #000000;

JSON

{
  "hex": "#421d21",
  "rgb": {
    "r": 66,
    "g": 29,
    "b": 33
  },
  "hsl": {
    "h": 353.514,
    "s": 38.947,
    "l": 18.627
  },
  "oklch": {
    "l": 0.28502,
    "c": 0.05734,
    "h": 14.6
  },
  "luminance": 0.02147
}

Semantic roles & 50–950 ramp

primary

#421D21

secondary

#447771

accent

#CFC259

background

#F7F5F5

surface

#EDE9E9

border

#C8C5C5

text

#090404

muted

#7B7979

Preview Lab

Preview with #421D21

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

Preview Lab → · Contrast checker → · Palette generator →