#42180E#42180E

#42180E is a dark, moderate red. Relative luminance 0.018; OKLCH L 27.2% C 0.068 H 34.7°. Best body text is #FFFFFF at 15.34:1 contrast (WCAG AA passes).

Color values

HEX	#42180E
RGB	rgb(66, 24, 14)
HSL	hsl(12, 65%, 16%)
HSV	hsv(12, 79%, 26%)
CMYK	cmyk(0%, 63.6%, 78.8%, 74.1%)
CIE-LAB	lab(14.64, 19.58, 16.22)
CIE-LCH	lch(14.64, 25.43, 39.63°)
OKLab	oklab(27.16% 0.056 0.0388)
OKLCH	oklch(27.16% 0.068 34.7)
XYZ	xyz(2.6529, 1.8436, 0.6315)
Luminance	0.0184 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42180E #0E3842

analogous

#420E1E #42180E #42320E

triadic

#42180E #0E4218 #180E42

tetradic

#42180E #1E420E #0E3842 #320E42

square

#42180E #1E420E #0E3842 #320E42

split-complementary

#42180E #0E4232 #0E1E42

monochromatic

#190905 #190905 #42180E #742A19 #A73D23

Accessibility & contrast

On white

15.34

#42180E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#42180E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42180E

15.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42180E	#FFFFFF	#000000	##FFFFFF
##42180E	1.00	15.34	1.37	15.34
#FFFFFF	15.34	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#231F0D

Deuteranopia (green-blind)

#2E280D

Tritanopia (blue-blind)

#490F16

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #42180e;
/* rgb */ color: rgb(66, 24, 14);
/* oklch */ color: oklch(27.2% 0.068 34.7);

Tailwind

colors: {
  custom: {
    50: '#7a564d',
    500: '#42180e',
    950: '#000000',
  },
}

SCSS

$custom: #42180e;
$custom-light: #7a564d;
$custom-dark: #000000;

JSON

{
  "hex": "#42180e",
  "rgb": {
    "r": 66,
    "g": 24,
    "b": 14
  },
  "hsl": {
    "h": 11.538,
    "s": 65,
    "l": 15.686
  },
  "oklch": {
    "l": 0.27159,
    "c": 0.0681,
    "h": 34.7
  },
  "luminance": 0.01843
}

Semantic roles & 50–950 ramp

primary

#42180E

secondary

#2F6E7D

accent

#C8E840

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#0A0301

muted

#7C7877

Preview Lab

Preview with #42180E

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

Preview Lab → · Contrast checker → · Palette generator →