#310107#310107

#310107 is a very dark, moderate red. Relative luminance 0.007; OKLCH L 20.0% C 0.078 H 19.2°. Best body text is #FFFFFF at 18.45:1 contrast (WCAG AA passes).

Color values

HEX	#310107
RGB	rgb(49, 1, 7)
HSL	hsl(353, 96%, 10%)
HSV	hsv(353, 98%, 19%)
CMYK	cmyk(0%, 98%, 85.7%, 80.8%)
CIE-LAB	lab(6.23, 24.22, 6.96)
CIE-LCH	lch(6.23, 25.20, 16.03°)
OKLab	oklab(20.02% 0.0733 0.0256)
OKLCH	oklch(20.02% 0.078 19.2)
XYZ	xyz(1.3160, 0.6902, 0.2649)
Luminance	0.0069 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310107 #01312B

analogous

#31011F #310107 #311301

triadic

#310107 #073101 #010731

tetradic

#310107 #1F3101 #01312B #130131

square

#310107 #1F3101 #01312B #130131

split-complementary

#310107 #013113 #011F31

monochromatic

#1E0104 #1E0104 #310107 #6D0210 #A90318

Accessibility & contrast

On white

18.45

#310107 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#310107 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310107

18.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310107	#FFFFFF	#000000	##FFFFFF
##310107	1.00	18.45	1.14	18.45
#FFFFFF	18.45	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E0D07

Deuteranopia (green-blind)

#1B1806

Tritanopia (blue-blind)

#370003

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #310107;
/* rgb */ color: rgb(49, 1, 7);
/* oklch */ color: oklch(20.0% 0.078 19.2);

Tailwind

colors: {
  custom: {
    50: '#6d474a',
    500: '#310107',
    950: '#000000',
  },
}

SCSS

$custom: #310107;
$custom-light: #6d474a;
$custom-dark: #000000;

JSON

{
  "hex": "#310107",
  "rgb": {
    "r": 49,
    "g": 1,
    "b": 7
  },
  "hsl": {
    "h": 352.5,
    "s": 96,
    "l": 9.804
  },
  "oklch": {
    "l": 0.20015,
    "c": 0.07765,
    "h": 19.2
  },
  "luminance": 0.0069
}

Semantic roles & 50–950 ramp

primary

#310107

secondary

#17776B

accent

#FFE429

background

#F6F4F4

surface

#ECE6E7

border

#C7C2C3

text

#080001

muted

#7A7777

Preview Lab

Preview with #310107

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

Preview Lab → · Contrast checker → · Palette generator →