#310405#310405

#310405 is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.5% C 0.073 H 25.1°. Best body text is #FFFFFF at 18.26:1 contrast (WCAG AA passes).

Color values

HEX	#310405
RGB	rgb(49, 4, 5)
HSL	hsl(359, 85%, 10%)
HSV	hsv(359, 92%, 19%)
CMYK	cmyk(0%, 91.8%, 89.8%, 80.8%)
CIE-LAB	lab(6.78, 22.51, 8.58)
CIE-LCH	lch(6.78, 24.09, 20.86°)
OKLab	oklab(20.47% 0.066 0.0309)
OKLCH	oklch(20.47% 0.073 25.1)
XYZ	xyz(1.3376, 0.7510, 0.2181)
Luminance	0.0075 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310405 #043130

analogous

#31041B #310405 #311904

triadic

#310405 #053104 #040531

tetradic

#310405 #1B3104 #043130 #190431

square

#310405 #1B3104 #043130 #190431

split-complementary

#310405 #043119 #041B31

monochromatic

#1C0203 #1C0203 #310405 #6A090B #A20D11

Accessibility & contrast

On white

18.26

#310405 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#310405 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310405

18.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310405	#FFFFFF	#000000	##FFFFFF
##310405	1.00	18.26	1.15	18.26
#FFFFFF	18.26	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#110F05

Deuteranopia (green-blind)

#1D1904

Tritanopia (blue-blind)

#370005

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #310405;
/* rgb */ color: rgb(49, 4, 5);
/* oklch */ color: oklch(20.5% 0.073 25.1);

Tailwind

colors: {
  custom: {
    50: '#6d4849',
    500: '#310405',
    950: '#000000',
  },
}

SCSS

$custom: #310405;
$custom-light: #6d4849;
$custom-dark: #000000;

JSON

{
  "hex": "#310405",
  "rgb": {
    "r": 49,
    "g": 4,
    "b": 5
  },
  "hsl": {
    "h": 358.667,
    "s": 84.906,
    "l": 10.392
  },
  "oklch": {
    "l": 0.20466,
    "c": 0.07282,
    "h": 25.1
  },
  "luminance": 0.00751
}

Semantic roles & 50–950 ramp

primary

#310405

secondary

#1D7372

accent

#FBF72D

background

#F6F4F4

surface

#ECE6E6

border

#C7C2C2

text

#070100

muted

#7A7777

Preview Lab

Preview with #310405

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

Preview Lab → · Contrast checker → · Palette generator →