#210005#210005

#210005 is a very dark, moderate red. Relative luminance 0.003; OKLCH L 15.8% C 0.063 H 14.3°. Best body text is #FFFFFF at 19.69:1 contrast (WCAG AA passes).

Color values

HEX	#210005
RGB	rgb(33, 0, 5)
HSL	hsl(351, 100%, 6%)
HSV	hsv(351, 100%, 13%)
CMYK	cmyk(0%, 100%, 84.8%, 87.1%)
CIE-LAB	lab(3.02, 13.80, 2.72)
CIE-LCH	lch(3.02, 14.07, 11.17°)
OKLab	oklab(15.76% 0.061 0.0156)
OKLCH	oklch(15.76% 0.063 14.3)
XYZ	xyz(0.6547, 0.3344, 0.1736)
Luminance	0.0033 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#210005 #00211C

analogous

#210016 #210005 #210C00

triadic

#210005 #052100 #000521

tetradic

#210005 #162100 #00211C #0C0021

square

#210005 #162100 #00211C #0C0021

split-complementary

#210005 #00210C #001621

monochromatic

#1F0005 #1F0005 #210005 #5E000E #9B0018

Accessibility & contrast

On white

19.69

#210005 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#210005 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #210005

19.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##210005	#FFFFFF	#000000	##FFFFFF
##210005	1.00	19.69	1.07	19.69
#FFFFFF	19.69	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#070605

Deuteranopia (green-blind)

#100E04

Tritanopia (blue-blind)

#250002

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #210005;
/* rgb */ color: rgb(33, 0, 5);
/* oklch */ color: oklch(15.8% 0.063 14.3);

Tailwind

colors: {
  custom: {
    50: '#5c4649',
    500: '#210005',
    950: '#000000',
  },
}

SCSS

$custom: #210005;
$custom-light: #5c4649;
$custom-dark: #000000;

JSON

{
  "hex": "#210005",
  "rgb": {
    "r": 33,
    "g": 0,
    "b": 5
  },
  "hsl": {
    "h": 350.909,
    "s": 100,
    "l": 6.471
  },
  "oklch": {
    "l": 0.1576,
    "c": 0.06299,
    "h": 14.3
  },
  "luminance": 0.00334
}

Semantic roles & 50–950 ramp

primary

#210005

secondary

#136A5D

accent

#FFDF29

background

#F5F3F4

surface

#E9E5E6

border

#C5C1C2

text

#040000

muted

#797777

Preview Lab

Preview with #210005

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

Preview Lab → · Contrast checker → · Palette generator →