#42170E#42170E

#42170E is a dark, moderate red. Relative luminance 0.018; OKLCH L 27.0% C 0.069 H 33.4°. Best body text is #FFFFFF at 15.43:1 contrast (WCAG AA passes).

Color values

HEX	#42170E
RGB	rgb(66, 23, 14)
HSL	hsl(10, 65%, 16%)
HSV	hsv(10, 79%, 26%)
CMYK	cmyk(0%, 65.2%, 78.8%, 74.1%)
CIE-LAB	lab(14.42, 20.17, 15.92)
CIE-LCH	lch(14.42, 25.70, 38.29°)
OKLab	oklab(26.99% 0.0578 0.0382)
OKLCH	oklch(26.99% 0.069 33.4)
XYZ	xyz(2.6327, 1.8031, 0.6248)
Luminance	0.0180 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42170E #0E3942

analogous

#420E1F #42170E #42310E

triadic

#42170E #0E4217 #170E42

tetradic

#42170E #1F420E #0E3942 #310E42

square

#42170E #1F420E #0E3942 #310E42

split-complementary

#42170E #0E4231 #0E1F42

monochromatic

#190905 #190905 #42170E #742919 #A73A23

Accessibility & contrast

On white

15.43

#42170E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#42170E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42170E

15.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42170E	#FFFFFF	#000000	##FFFFFF
##42170E	1.00	15.43	1.36	15.43
#FFFFFF	15.43	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#231F0D

Deuteranopia (green-blind)

#2D280D

Tritanopia (blue-blind)

#490E15

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #42170e;
/* rgb */ color: rgb(66, 23, 14);
/* oklch */ color: oklch(27.0% 0.069 33.4);

Tailwind

colors: {
  custom: {
    50: '#7b564d',
    500: '#42170e',
    950: '#000000',
  },
}

SCSS

$custom: #42170e;
$custom-light: #7b564d;
$custom-dark: #000000;

JSON

{
  "hex": "#42170e",
  "rgb": {
    "r": 66,
    "g": 23,
    "b": 14
  },
  "hsl": {
    "h": 10.385,
    "s": 65,
    "l": 15.686
  },
  "oklch": {
    "l": 0.26988,
    "c": 0.06929,
    "h": 33.4
  },
  "luminance": 0.01803
}

Semantic roles & 50–950 ramp

primary

#42170E

secondary

#2F6F7D

accent

#CBE840

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#0A0301

muted

#7C7877

Preview Lab

Preview with #42170E

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

Preview Lab → · Contrast checker → · Palette generator →