#210401#210401

#210401 is a very dark, muted red. Relative luminance 0.004; OKLCH L 16.6% C 0.054 H 34.1°. Best body text is #FFFFFF at 19.40:1 contrast (WCAG AA passes).

Color values

HEX	#210401
RGB	rgb(33, 4, 1)
HSL	hsl(6, 94%, 7%)
HSV	hsv(6, 97%, 13%)
CMYK	cmyk(0%, 87.9%, 97%, 87.1%)
CIE-LAB	lab(3.73, 11.64, 5.38)
CIE-LCH	lch(3.73, 12.82, 24.83°)
OKLab	oklab(16.65% 0.0447 0.0303)
OKLCH	oklch(16.65% 0.054 34.1)
XYZ	xyz(0.6762, 0.4125, 0.0727)
Luminance	0.0041 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#210401 #011E21

analogous

#21010E #210401 #211401

triadic

#210401 #012104 #040121

tetradic

#210401 #0E2101 #011E21 #140121

square

#210401 #0E2101 #011E21 #140121

split-complementary

#210401 #012114 #010E21

monochromatic

#1E0401 #1E0401 #210401 #5C0B03 #981205

Accessibility & contrast

On white

19.40

#210401 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#210401 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #210401

19.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##210401	#FFFFFF	#000000	##FFFFFF
##210401	1.00	19.40	1.08	19.40
#FFFFFF	19.40	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C0901

Deuteranopia (green-blind)

#131001

Tritanopia (blue-blind)

#260003

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #210401;
/* rgb */ color: rgb(33, 4, 1);
/* oklch */ color: oklch(16.6% 0.054 34.1);

Tailwind

colors: {
  custom: {
    50: '#5c4847',
    500: '#210401',
    950: '#000000',
  },
}

SCSS

$custom: #210401;
$custom-light: #5c4847;
$custom-dark: #000000;

JSON

{
  "hex": "#210401",
  "rgb": {
    "r": 33,
    "g": 4,
    "b": 1
  },
  "hsl": {
    "h": 5.625,
    "s": 94.118,
    "l": 6.667
  },
  "oklch": {
    "l": 0.16646,
    "c": 0.05398,
    "h": 34.1
  },
  "luminance": 0.00412
}

Semantic roles & 50–950 ramp

primary

#210401

secondary

#156168

accent

#EBFF29

background

#F5F4F3

surface

#E9E6E5

border

#C5C2C1

text

#040000

muted

#797777

Preview Lab

Preview with #210401

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

Preview Lab → · Contrast checker → · Palette generator →