#42170C#42170C

#42170C is a dark, moderate red. Relative luminance 0.018; OKLCH L 27.0% C 0.070 H 35.4°. Best body text is #FFFFFF at 15.45:1 contrast (WCAG AA passes).

Color values

HEX	#42170C
RGB	rgb(66, 23, 12)
HSL	hsl(12, 69%, 15%)
HSV	hsv(12, 82%, 26%)
CMYK	cmyk(0%, 65.2%, 81.8%, 74.1%)
CIE-LAB	lab(14.39, 20.05, 16.84)
CIE-LCH	lch(14.39, 26.19, 40.03°)
OKLab	oklab(26.96% 0.057 0.0406)
OKLCH	oklch(26.96% 0.07 35.4)
XYZ	xyz(2.6198, 1.7979, 0.5568)
Luminance	0.0180 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42170C #0C3742

analogous

#420C1C #42170C #42320C

triadic

#42170C #0C4217 #170C42

tetradic

#42170C #1C420C #0C3742 #320C42

square

#42170C #1C420C #0C3742 #320C42

split-complementary

#42170C #0C4232 #0C1C42

monochromatic

#1A0905 #1A0905 #42170C #762915 #AA3B1F

Accessibility & contrast

On white

15.45

#42170C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#42170C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42170C

15.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42170C	#FFFFFF	#000000	##FFFFFF
##42170C	1.00	15.45	1.36	15.45
#FFFFFF	15.45	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#231F0B

Deuteranopia (green-blind)

#2D280B

Tritanopia (blue-blind)

#490E15

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #42170c;
/* rgb */ color: rgb(66, 23, 12);
/* oklch */ color: oklch(27.0% 0.070 35.4);

Tailwind

colors: {
  custom: {
    50: '#7b564c',
    500: '#42170c',
    950: '#000000',
  },
}

SCSS

$custom: #42170c;
$custom-light: #7b564c;
$custom-dark: #000000;

JSON

{
  "hex": "#42170c",
  "rgb": {
    "r": 66,
    "g": 23,
    "b": 12
  },
  "hsl": {
    "h": 12.222,
    "s": 69.231,
    "l": 15.294
  },
  "oklch": {
    "l": 0.26956,
    "c": 0.06993,
    "h": 35.4
  },
  "luminance": 0.01798
}

Semantic roles & 50–950 ramp

primary

#42170C

secondary

#2C6D7E

accent

#C8EC3C

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#0A0301

muted

#7C7877

Preview Lab

Preview with #42170C

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

Preview Lab → · Contrast checker → · Palette generator →