#310B06#310B06

#310B06 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.6% C 0.063 H 31.1°. Best body text is #FFFFFF at 17.78:1 contrast (WCAG AA passes).

Color values

HEX	#310B06
RGB	rgb(49, 11, 6)
HSL	hsl(7, 78%, 11%)
HSV	hsv(7, 88%, 19%)
CMYK	cmyk(0%, 77.6%, 87.8%, 80.8%)
CIE-LAB	lab(8.18, 18.90, 10.21)
CIE-LCH	lch(8.18, 21.48, 28.37°)
OKLab	oklab(21.57% 0.0541 0.0326)
OKLCH	oklch(21.57% 0.063 31.1)
XYZ	xyz(1.4193, 0.9057, 0.2723)
Luminance	0.0091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310B06 #062C31

analogous

#310616 #310B06 #312006

triadic

#310B06 #06310B #0B0631

tetradic

#310B06 #163106 #062C31 #200631

square

#310B06 #163106 #062C31 #200631

split-complementary

#310B06 #063120 #061631

monochromatic

#1B0603 #1B0603 #310B06 #68170D #9E2313

Accessibility & contrast

On white

17.78

#310B06 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#310B06 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310B06

17.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310B06	#FFFFFF	#000000	##FFFFFF
##310B06	1.00	17.78	1.18	17.78
#FFFFFF	17.78	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161305

Deuteranopia (green-blind)

#1F1B05

Tritanopia (blue-blind)

#37030A

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #310b06;
/* rgb */ color: rgb(49, 11, 6);
/* oklch */ color: oklch(21.6% 0.063 31.1);

Tailwind

colors: {
  custom: {
    50: '#6c4c49',
    500: '#310b06',
    950: '#000000',
  },
}

SCSS

$custom: #310b06;
$custom-light: #6c4c49;
$custom-dark: #000000;

JSON

{
  "hex": "#310b06",
  "rgb": {
    "r": 49,
    "g": 11,
    "b": 6
  },
  "hsl": {
    "h": 6.977,
    "s": 78.182,
    "l": 10.784
  },
  "oklch": {
    "l": 0.21566,
    "c": 0.06314,
    "h": 31.1
  },
  "luminance": 0.00905
}

Semantic roles & 50–950 ramp

primary

#310B06

secondary

#216872

accent

#DEF533

background

#F6F4F4

surface

#ECE7E6

border

#C7C3C2

text

#070100

muted

#7A7777

Preview Lab

Preview with #310B06

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

Preview Lab → · Contrast checker → · Palette generator →