#310F11#310F11

#310F11 is a very dark, muted red. Relative luminance 0.010; OKLCH L 22.5% C 0.055 H 19.2°. Best body text is #FFFFFF at 17.40:1 contrast (WCAG AA passes).

Color values

HEX	#310F11
RGB	rgb(49, 15, 17)
HSL	hsl(356, 53%, 13%)
HSV	hsv(356, 69%, 19%)
CMYK	cmyk(0%, 69.4%, 65.3%, 80.8%)
CIE-LAB	lab(9.28, 17.51, 6.72)
CIE-LCH	lch(9.28, 18.76, 20.99°)
OKLab	oklab(22.47% 0.0524 0.0182)
OKLCH	oklch(22.47% 0.055 19.2)
XYZ	xyz(1.5388, 1.0353, 0.6490)
Luminance	0.0103 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310F11 #0F312F

analogous

#310F22 #310F11 #311E0F

triadic

#310F11 #11310F #0F1131

tetradic

#310F11 #22310F #0F312F #1E0F31

square

#310F11 #22310F #0F312F #1E0F31

split-complementary

#310F11 #0F311E #0F2231

monochromatic

#170708 #170708 #310F11 #601D21 #8F2C32

Accessibility & contrast

On white

17.40

#310F11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#310F11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310F11

17.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310F11	#FFFFFF	#000000	##FFFFFF
##310F11	1.00	17.40	1.21	17.40
#FFFFFF	17.40	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171611

Deuteranopia (green-blind)

#201D10

Tritanopia (blue-blind)

#360910

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #310f11;
/* rgb */ color: rgb(49, 15, 17);
/* oklch */ color: oklch(22.5% 0.055 19.2);

Tailwind

colors: {
  custom: {
    50: '#6c4f4f',
    500: '#310f11',
    950: '#000000',
  },
}

SCSS

$custom: #310f11;
$custom-light: #6c4f4f;
$custom-dark: #000000;

JSON

{
  "hex": "#310f11",
  "rgb": {
    "r": 49,
    "g": 15,
    "b": 17
  },
  "hsl": {
    "h": 356.471,
    "s": 53.125,
    "l": 12.549
  },
  "oklch": {
    "l": 0.2247,
    "c": 0.05545,
    "h": 19.2
  },
  "luminance": 0.01035
}

Semantic roles & 50–950 ramp

primary

#310F11

secondary

#316B67

accent

#DDD44B

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070201

muted

#7A7877

Preview Lab

Preview with #310F11

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

Preview Lab → · Contrast checker → · Palette generator →