#310F17#310F17

#310F17 is a very dark, muted red. Relative luminance 0.011; OKLCH L 22.7% C 0.056 H 8.1°. Best body text is #FFFFFF at 17.34:1 contrast (WCAG AA passes).

Color values

HEX	#310F17
RGB	rgb(49, 15, 23)
HSL	hsl(346, 53%, 13%)
HSV	hsv(346, 69%, 19%)
CMYK	cmyk(0%, 69.4%, 53.1%, 80.8%)
CIE-LAB	lab(9.46, 18.21, 2.99)
CIE-LCH	lch(9.46, 18.46, 9.33°)
OKLab	oklab(22.66% 0.0554 0.0079)
OKLCH	oklch(22.66% 0.056 8.1)
XYZ	xyz(1.5922, 1.0567, 0.9306)
Luminance	0.0106 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310F17 #0F3129

analogous

#310F28 #310F17 #31180F

triadic

#310F17 #17310F #0F1731

tetradic

#310F17 #28310F #0F3129 #180F31

square

#310F17 #28310F #0F3129 #180F31

split-complementary

#310F17 #0F3118 #0F2831

monochromatic

#17070B #17070B #310F17 #601D2D #8F2C43

Accessibility & contrast

On white

17.34

#310F17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#310F17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310F17

17.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310F17	#FFFFFF	#000000	##FFFFFF
##310F17	1.00	17.34	1.21	17.34
#FFFFFF	17.34	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161617

Deuteranopia (green-blind)

#1F1D16

Tritanopia (blue-blind)

#360B12

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #310f17;
/* rgb */ color: rgb(49, 15, 23);
/* oklch */ color: oklch(22.7% 0.056 8.1);

Tailwind

colors: {
  custom: {
    50: '#6b4f53',
    500: '#310f17',
    950: '#000000',
  },
}

SCSS

$custom: #310f17;
$custom-light: #6b4f53;
$custom-dark: #000000;

JSON

{
  "hex": "#310f17",
  "rgb": {
    "r": 49,
    "g": 15,
    "b": 23
  },
  "hsl": {
    "h": 345.882,
    "s": 53.125,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22657,
    "c": 0.05592,
    "h": 8.1
  },
  "luminance": 0.01056
}

Semantic roles & 50–950 ramp

primary

#310F17

secondary

#316B5D

accent

#DDBA4B

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#070202

muted

#7A7878

Preview Lab

Preview with #310F17

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

Preview Lab → · Contrast checker → · Palette generator →