#310C01#310C01

#310C01 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.6% C 0.064 H 40.3°. Best body text is #FFFFFF at 17.74:1 contrast (WCAG AA passes).

Color values

HEX	#310C01
RGB	rgb(49, 12, 1)
HSL	hsl(14, 96%, 10%)
HSV	hsv(14, 98%, 19%)
CMYK	cmyk(0%, 75.5%, 98%, 80.8%)
CIE-LAB	lab(8.29, 17.97, 12.41)
CIE-LCH	lch(8.29, 21.84, 34.63°)
OKLab	oklab(21.62% 0.0492 0.0417)
OKLCH	oklch(21.62% 0.064 40.3)
XYZ	xyz(1.4037, 0.9183, 0.1320)
Luminance	0.0092 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310C01 #012631

analogous

#31010E #310C01 #312401

triadic

#310C01 #01310C #0C0131

tetradic

#310C01 #0E3101 #012631 #240131

square

#310C01 #0E3101 #012631 #240131

split-complementary

#310C01 #013124 #010E31

monochromatic

#1E0701 #1E0701 #310C01 #6D1B02 #A92903

Accessibility & contrast

On white

17.74

#310C01 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#310C01 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310C01

17.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310C01	#FFFFFF	#000000	##FFFFFF
##310C01	1.00	17.74	1.18	17.74
#FFFFFF	17.74	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171300

Deuteranopia (green-blind)

#201B00

Tritanopia (blue-blind)

#370309

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #310c01;
/* rgb */ color: rgb(49, 12, 1);
/* oklch */ color: oklch(21.6% 0.064 40.3);

Tailwind

colors: {
  custom: {
    50: '#6c4d47',
    500: '#310c01',
    950: '#000000',
  },
}

SCSS

$custom: #310c01;
$custom-light: #6c4d47;
$custom-dark: #000000;

JSON

{
  "hex": "#310c01",
  "rgb": {
    "r": 49,
    "g": 12,
    "b": 1
  },
  "hsl": {
    "h": 13.75,
    "s": 96,
    "l": 9.804
  },
  "oklch": {
    "l": 0.21619,
    "c": 0.06446,
    "h": 40.3
  },
  "luminance": 0.00918
}

Semantic roles & 50–950 ramp

primary

#310C01

secondary

#176177

accent

#CEFF29

background

#F6F4F3

surface

#ECE7E5

border

#C7C3C1

text

#070100

muted

#7A7777

Preview Lab

Preview with #310C01

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

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