#310203#310203

#310203 is a very dark, moderate red. Relative luminance 0.007; OKLCH L 20.1% C 0.076 H 26.2°. Best body text is #FFFFFF at 18.41:1 contrast (WCAG AA passes).

Color values

HEX	#310203
RGB	rgb(49, 2, 3)
HSL	hsl(359, 92%, 10%)
HSV	hsv(359, 96%, 19%)
CMYK	cmyk(0%, 95.9%, 93.9%, 80.8%)
CIE-LAB	lab(6.35, 23.38, 8.76)
CIE-LCH	lch(6.35, 24.97, 20.54°)
OKLab	oklab(20.09% 0.0686 0.0337)
OKLCH	oklch(20.09% 0.076 26.2)
XYZ	xyz(1.3049, 0.7032, 0.1531)
Luminance	0.0070 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310203 #023130

analogous

#31021B #310203 #311802

triadic

#310203 #033102 #020331

tetradic

#310203 #1B3102 #023130 #180231

square

#310203 #1B3102 #023130 #180231

split-complementary

#310203 #023118 #021B31

monochromatic

#1D0102 #1D0102 #310203 #6C0407 #A7070A

Accessibility & contrast

On white

18.41

#310203 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#310203 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310203

18.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310203	#FFFFFF	#000000	##FFFFFF
##310203	1.00	18.41	1.14	18.41
#FFFFFF	18.41	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#100D03

Deuteranopia (green-blind)

#1C1802

Tritanopia (blue-blind)

#370003

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #310203;
/* rgb */ color: rgb(49, 2, 3);
/* oklch */ color: oklch(20.1% 0.076 26.2);

Tailwind

colors: {
  custom: {
    50: '#6d4748',
    500: '#310203',
    950: '#000000',
  },
}

SCSS

$custom: #310203;
$custom-light: #6d4748;
$custom-dark: #000000;

JSON

{
  "hex": "#310203",
  "rgb": {
    "r": 49,
    "g": 2,
    "b": 3
  },
  "hsl": {
    "h": 358.723,
    "s": 92.157,
    "l": 10
  },
  "oklch": {
    "l": 0.20086,
    "c": 0.07645,
    "h": 26.2
  },
  "luminance": 0.00703
}

Semantic roles & 50–950 ramp

primary

#310203

secondary

#197573

accent

#FFFA29

background

#F6F4F4

surface

#ECE6E6

border

#C7C2C2

text

#080000

muted

#7A7777

Preview Lab

Preview with #310203

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

Preview Lab → · Contrast checker → · Palette generator →