#310306#310306

#310306 is a very dark, moderate red. Relative luminance 0.007; OKLCH L 20.3% C 0.074 H 22.6°. Best body text is #FFFFFF at 18.32:1 contrast (WCAG AA passes).

Color values

HEX	#310306
RGB	rgb(49, 3, 6)
HSL	hsl(356, 88%, 10%)
HSV	hsv(356, 94%, 19%)
CMYK	cmyk(0%, 93.9%, 87.8%, 80.8%)
CIE-LAB	lab(6.61, 23.11, 7.91)
CIE-LCH	lch(6.61, 24.42, 18.90°)
OKLab	oklab(20.33% 0.0686 0.0285)
OKLCH	oklch(20.33% 0.074 22.6)
XYZ	xyz(1.3322, 0.7315, 0.2433)
Luminance	0.0073 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310306 #03312E

analogous

#31031D #310306 #311703

triadic

#310306 #063103 #030631

tetradic

#310306 #1D3103 #03312E #170331

square

#310306 #1D3103 #03312E #170331

split-complementary

#310306 #033117 #031D31

monochromatic

#1D0204 #1D0204 #310306 #6B070D #A40A14

Accessibility & contrast

On white

18.32

#310306 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#310306 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310306

18.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310306	#FFFFFF	#000000	##FFFFFF
##310306	1.00	18.32	1.15	18.32
#FFFFFF	18.32	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#100E06

Deuteranopia (green-blind)

#1C1805

Tritanopia (blue-blind)

#370004

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #310306;
/* rgb */ color: rgb(49, 3, 6);
/* oklch */ color: oklch(20.3% 0.074 22.6);

Tailwind

colors: {
  custom: {
    50: '#6d4849',
    500: '#310306',
    950: '#000000',
  },
}

SCSS

$custom: #310306;
$custom-light: #6d4849;
$custom-dark: #000000;

JSON

{
  "hex": "#310306",
  "rgb": {
    "r": 49,
    "g": 3,
    "b": 6
  },
  "hsl": {
    "h": 356.087,
    "s": 88.462,
    "l": 10.196
  },
  "oklch": {
    "l": 0.20326,
    "c": 0.07426,
    "h": 22.6
  },
  "luminance": 0.00731
}

Semantic roles & 50–950 ramp

primary

#310306

secondary

#1B746F

accent

#FFF129

background

#F6F4F4

surface

#ECE6E6

border

#C7C2C2

text

#070000

muted

#7A7777

Preview Lab

Preview with #310306

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

Preview Lab → · Contrast checker → · Palette generator →