#75181F#75181F

#75181F is a dark, vivid red. Relative luminance 0.045; OKLCH L 37.2% C 0.127 H 22.3°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#75181F
RGB	rgb(117, 24, 31)
HSL	hsl(355, 66%, 28%)
HSV	hsv(355, 79%, 46%)
CMYK	cmyk(0%, 79.5%, 73.5%, 54.1%)
CIE-LAB	lab(25.37, 40.00, 20.80)
CIE-LCH	lch(25.37, 45.09, 27.48°)
OKLab	oklab(37.21% 0.1173 0.048)
OKLCH	oklch(37.21% 0.127 22.3)
XYZ	xyz(7.9110, 4.5353, 1.7549)
Luminance	0.0453 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#75181F #18756E

analogous

#75184D #75181F #754018

triadic

#75181F #1F7518 #181F75

tetradic

#75181F #4D7518 #18756E #401875

square

#75181F #4D7518 #18756E #401875

split-complementary

#75181F #187540 #184D75

monochromatic

#190507 #420E12 #75181F #A8222C #D5323F

Accessibility & contrast

On white

11.01

#75181F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#75181F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #75181F

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##75181F	#FFFFFF	#000000	##FFFFFF
##75181F	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#342F1E

Deuteranopia (green-blind)

#4B431C

Tritanopia (blue-blind)

#81001C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #75181f;
/* rgb */ color: rgb(117, 24, 31);
/* oklch */ color: oklch(37.2% 0.127 22.3);

Tailwind

colors: {
  custom: {
    50: '#a45e5a',
    500: '#75181f',
    950: '#000000',
  },
}

SCSS

$custom: #75181f;
$custom-light: #a45e5a;
$custom-dark: #000000;

JSON

{
  "hex": "#75181f",
  "rgb": {
    "r": 117,
    "g": 24,
    "b": 31
  },
  "hsl": {
    "h": 355.484,
    "s": 65.957,
    "l": 27.647
  },
  "oklch": {
    "l": 0.37214,
    "c": 0.12669,
    "h": 22.3
  },
  "luminance": 0.04534
}

Semantic roles & 50–950 ramp

primary

#75181F

secondary

#3FAAA2

accent

#E9DC3F

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100503

muted

#7F7978

Preview Lab

Preview with #75181F

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

Preview Lab → · Contrast checker → · Palette generator →