#75181C#75181C

#75181C is a dark, vivid red. Relative luminance 0.045; OKLCH L 37.2% C 0.127 H 23.9°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#75181C
RGB	rgb(117, 24, 28)
HSL	hsl(357, 66%, 28%)
HSV	hsv(357, 79%, 46%)
CMYK	cmyk(0%, 79.5%, 76.1%, 54.1%)
CIE-LAB	lab(25.32, 39.85, 22.71)
CIE-LCH	lch(25.32, 45.86, 29.68°)
OKLab	oklab(37.17% 0.1161 0.0515)
OKLCH	oklch(37.17% 0.127 23.9)
XYZ	xyz(7.8733, 4.5202, 1.5563)
Luminance	0.0452 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#75181C #187571

analogous

#75184B #75181C #754218

triadic

#75181C #1C7518 #181C75

tetradic

#75181C #4B7518 #187571 #421875

square

#75181C #4B7518 #187571 #421875

split-complementary

#75181C #187542 #184B75

monochromatic

#190506 #420E10 #75181C #A82228 #D53239

Accessibility & contrast

On white

11.03

#75181C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#75181C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #75181C

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##75181C	#FFFFFF	#000000	##FFFFFF
##75181C	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#342F1B

Deuteranopia (green-blind)

#4B4319

Tritanopia (blue-blind)

#81001B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #75181c;
/* rgb */ color: rgb(117, 24, 28);
/* oklch */ color: oklch(37.2% 0.127 23.9);

Tailwind

colors: {
  custom: {
    50: '#a45e58',
    500: '#75181c',
    950: '#000000',
  },
}

SCSS

$custom: #75181c;
$custom-light: #a45e58;
$custom-dark: #000000;

JSON

{
  "hex": "#75181c",
  "rgb": {
    "r": 117,
    "g": 24,
    "b": 28
  },
  "hsl": {
    "h": 357.419,
    "s": 65.957,
    "l": 27.647
  },
  "oklch": {
    "l": 0.37165,
    "c": 0.12698,
    "h": 23.9
  },
  "luminance": 0.04519
}

Semantic roles & 50–950 ramp

primary

#75181C

secondary

#3FAAA6

accent

#E9E23F

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#110503

muted

#807978

Preview Lab

Preview with #75181C

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

Preview Lab → · Contrast checker → · Palette generator →