#25100B#25100B

#25100B is a very dark, muted red. Relative luminance 0.008; OKLCH L 20.3% C 0.037 H 34.4°. Best body text is #FFFFFF at 18.14:1 contrast (WCAG AA passes).

Color values

HEX	#25100B
RGB	rgb(37, 16, 11)
HSL	hsl(12, 54%, 9%)
HSV	hsv(12, 70%, 15%)
CMYK	cmyk(0%, 56.8%, 70.3%, 85.5%)
CIE-LAB	lab(7.12, 10.22, 6.33)
CIE-LCH	lch(7.12, 12.03, 31.77°)
OKLab	oklab(20.29% 0.0305 0.0209)
OKLCH	oklch(20.29% 0.037 34.4)
XYZ	xyz(1.0087, 0.7882, 0.4156)
Luminance	0.0079 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25100B #0B2025

analogous

#250B13 #25100B #251D0B

triadic

#25100B #0B2510 #100B25

tetradic

#25100B #13250B #0B2025 #1D0B25

square

#25100B #13250B #0B2025 #1D0B25

split-complementary

#25100B #0B251D #0B1325

monochromatic

#180A07 #180A07 #25100B #542419 #833927

Accessibility & contrast

On white

18.14

#25100B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#25100B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25100B

18.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25100B	#FFFFFF	#000000	##FFFFFF
##25100B	1.00	18.14	1.16	18.14
#FFFFFF	18.14	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15130B

Deuteranopia (green-blind)

#1A170B

Tritanopia (blue-blind)

#290D0F

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #25100b;
/* rgb */ color: rgb(37, 16, 11);
/* oklch */ color: oklch(20.3% 0.037 34.4);

Tailwind

colors: {
  custom: {
    50: '#604e4b',
    500: '#25100b',
    950: '#000000',
  },
}

SCSS

$custom: #25100b;
$custom-light: #604e4b;
$custom-dark: #000000;

JSON

{
  "hex": "#25100b",
  "rgb": {
    "r": 37,
    "g": 16,
    "b": 11
  },
  "hsl": {
    "h": 11.538,
    "s": 54.167,
    "l": 9.412
  },
  "oklch": {
    "l": 0.20293,
    "c": 0.03694,
    "h": 34.4
  },
  "luminance": 0.00788
}

Semantic roles & 50–950 ramp

primary

#25100B

secondary

#2B5660

accent

#C1DE4A

background

#F5F4F4

surface

#EAE7E7

border

#C6C3C3

text

#050101

muted

#797777

Preview Lab

Preview with #25100B

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

Preview Lab → · Contrast checker → · Palette generator →