#75181D#75181D

#75181D is a dark, vivid red. Relative luminance 0.045; OKLCH L 37.2% C 0.127 H 23.4°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#75181D
RGB	rgb(117, 24, 29)
HSL	hsl(357, 66%, 28%)
HSV	hsv(357, 79%, 46%)
CMYK	cmyk(0%, 79.5%, 75.2%, 54.1%)
CIE-LAB	lab(25.34, 39.90, 22.08)
CIE-LCH	lch(25.34, 45.60, 28.96°)
OKLab	oklab(37.18% 0.1164 0.0504)
OKLCH	oklch(37.18% 0.127 23.4)
XYZ	xyz(7.8854, 4.5251, 1.6204)
Luminance	0.0452 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#75181D #187570

analogous

#75184C #75181D #754118

triadic

#75181D #1D7518 #181D75

tetradic

#75181D #4C7518 #187570 #411875

square

#75181D #4C7518 #187570 #411875

split-complementary

#75181D #187541 #184C75

monochromatic

#190506 #420E10 #75181D #A8222A #D5323B

Accessibility & contrast

On white

11.02

#75181D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#75181D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #75181D

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##75181D	#FFFFFF	#000000	##FFFFFF
##75181D	1.00	11.02	1.90	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#342F1C

Deuteranopia (green-blind)

#4B431A

Tritanopia (blue-blind)

#81001B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #75181d;
/* rgb */ color: rgb(117, 24, 29);
/* oklch */ color: oklch(37.2% 0.127 23.4);

Tailwind

colors: {
  custom: {
    50: '#a45e59',
    500: '#75181d',
    950: '#000000',
  },
}

SCSS

$custom: #75181d;
$custom-light: #a45e59;
$custom-dark: #000000;

JSON

{
  "hex": "#75181d",
  "rgb": {
    "r": 117,
    "g": 24,
    "b": 29
  },
  "hsl": {
    "h": 356.774,
    "s": 65.957,
    "l": 27.647
  },
  "oklch": {
    "l": 0.37181,
    "c": 0.12687,
    "h": 23.4
  },
  "luminance": 0.04524
}

Semantic roles & 50–950 ramp

primary

#75181D

secondary

#3FAAA4

accent

#E9E03F

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100503

muted

#7F7978

Preview Lab

Preview with #75181D

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

Preview Lab → · Contrast checker → · Palette generator →