#210604#210604

#210604 is a very dark, muted red. Relative luminance 0.005; OKLCH L 17.2% C 0.048 H 29.2°. Best body text is #FFFFFF at 19.22:1 contrast (WCAG AA passes).

Color values

HEX	#210604
RGB	rgb(33, 6, 4)
HSL	hsl(4, 78%, 7%)
HSV	hsv(4, 88%, 13%)
CMYK	cmyk(0%, 81.8%, 87.9%, 87.1%)
CIE-LAB	lab(4.18, 11.26, 4.82)
CIE-LCH	lch(4.18, 12.25, 23.18°)
OKLab	oklab(17.22% 0.0423 0.0237)
OKLCH	oklch(17.22% 0.048 29.2)
XYZ	xyz(0.7143, 0.4624, 0.1665)
Luminance	0.0046 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#210604 #041F21

analogous

#210411 #210604 #211504

triadic

#210604 #042106 #060421

tetradic

#210604 #112104 #041F21 #150421

square

#210604 #112104 #041F21 #150421

split-complementary

#210604 #042115 #041121

monochromatic

#1B0503 #1B0503 #210604 #58100B #8E1A11

Accessibility & contrast

On white

19.22

#210604 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#210604 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #210604

19.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##210604	#FFFFFF	#000000	##FFFFFF
##210604	1.00	19.22	1.09	19.22
#FFFFFF	19.22	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D0B04

Deuteranopia (green-blind)

#141104

Tritanopia (blue-blind)

#250206

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #210604;
/* rgb */ color: rgb(33, 6, 4);
/* oklch */ color: oklch(17.2% 0.048 29.2);

Tailwind

colors: {
  custom: {
    50: '#5c4948',
    500: '#210604',
    950: '#000000',
  },
}

SCSS

$custom: #210604;
$custom-light: #5c4948;
$custom-dark: #000000;

JSON

{
  "hex": "#210604",
  "rgb": {
    "r": 33,
    "g": 6,
    "b": 4
  },
  "hsl": {
    "h": 4.138,
    "s": 78.378,
    "l": 7.255
  },
  "oklch": {
    "l": 0.1722,
    "c": 0.04845,
    "h": 29.2
  },
  "luminance": 0.00462
}

Semantic roles & 50–950 ramp

primary

#210604

secondary

#1D5F64

accent

#E7F533

background

#F5F4F4

surface

#E9E6E6

border

#C5C2C2

text

#040000

muted

#797777

Preview Lab

Preview with #210604

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

Preview Lab → · Contrast checker → · Palette generator →