#310402#310402

#310402 is a very dark, moderate red. Relative luminance 0.007; OKLCH L 20.4% C 0.074 H 29.8°. Best body text is #FFFFFF at 18.28:1 contrast (WCAG AA passes).

Color values

HEX	#310402
RGB	rgb(49, 4, 2)
HSL	hsl(3, 92%, 10%)
HSV	hsv(3, 96%, 19%)
CMYK	cmyk(0%, 91.8%, 95.9%, 80.8%)
CIE-LAB	lab(6.72, 22.27, 9.71)
CIE-LCH	lch(6.72, 24.30, 23.56°)
OKLab	oklab(20.4% 0.0639 0.0367)
OKLCH	oklch(20.4% 0.074 29.8)
XYZ	xyz(1.3212, 0.7444, 0.1315)
Luminance	0.0074 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310402 #022F31

analogous

#310218 #310402 #311B02

triadic

#310402 #023104 #040231

tetradic

#310402 #183102 #022F31 #1B0231

square

#310402 #183102 #022F31 #1B0231

split-complementary

#310402 #02311B #021831

monochromatic

#1D0201 #1D0201 #310402 #6C0904 #A70E07

Accessibility & contrast

On white

18.28

#310402 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#310402 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310402

18.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310402	#FFFFFF	#000000	##FFFFFF
##310402	1.00	18.28	1.15	18.28
#FFFFFF	18.28	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#120E02

Deuteranopia (green-blind)

#1D1901

Tritanopia (blue-blind)

#370004

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #310402;
/* rgb */ color: rgb(49, 4, 2);
/* oklch */ color: oklch(20.4% 0.074 29.8);

Tailwind

colors: {
  custom: {
    50: '#6d4847',
    500: '#310402',
    950: '#000000',
  },
}

SCSS

$custom: #310402;
$custom-light: #6d4847;
$custom-dark: #000000;

JSON

{
  "hex": "#310402",
  "rgb": {
    "r": 49,
    "g": 4,
    "b": 2
  },
  "hsl": {
    "h": 2.553,
    "s": 92.157,
    "l": 10
  },
  "oklch": {
    "l": 0.20395,
    "c": 0.07366,
    "h": 29.8
  },
  "luminance": 0.00744
}

Semantic roles & 50–950 ramp

primary

#310402

secondary

#197275

accent

#F6FF29

background

#F6F4F4

surface

#ECE6E6

border

#C7C2C2

text

#070100

muted

#7A7777

Preview Lab

Preview with #310402

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

Preview Lab → · Contrast checker → · Palette generator →