#42170F#42170F

#42170F is a dark, moderate red. Relative luminance 0.018; OKLCH L 27.0% C 0.069 H 32.4°. Best body text is #FFFFFF at 15.43:1 contrast (WCAG AA passes).

Color values

HEX	#42170F
RGB	rgb(66, 23, 15)
HSL	hsl(9, 63%, 16%)
HSV	hsv(9, 77%, 26%)
CMYK	cmyk(0%, 65.2%, 77.3%, 74.1%)
CIE-LAB	lab(14.43, 20.24, 15.43)
CIE-LCH	lch(14.43, 25.44, 37.32°)
OKLab	oklab(27.01% 0.0582 0.0369)
OKLCH	oklch(27.01% 0.069 32.4)
XYZ	xyz(2.6396, 1.8059, 0.6614)
Luminance	0.0181 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42170F #0F3A42

analogous

#420F20 #42170F #42300F

triadic

#42170F #0F4217 #170F42

tetradic

#42170F #20420F #0F3A42 #300F42

square

#42170F #20420F #0F3A42 #300F42

split-complementary

#42170F #0F4230 #0F2042

monochromatic

#190906 #190906 #42170F #74281A #A63A26

Accessibility & contrast

On white

15.43

#42170F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#42170F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42170F

15.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42170F	#FFFFFF	#000000	##FFFFFF
##42170F	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)

#221F0E

Deuteranopia (green-blind)

#2D280E

Tritanopia (blue-blind)

#490E15

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #42170f;
/* rgb */ color: rgb(66, 23, 15);
/* oklch */ color: oklch(27.0% 0.069 32.4);

Tailwind

colors: {
  custom: {
    50: '#7b564e',
    500: '#42170f',
    950: '#000000',
  },
}

SCSS

$custom: #42170f;
$custom-light: #7b564e;
$custom-dark: #000000;

JSON

{
  "hex": "#42170f",
  "rgb": {
    "r": 66,
    "g": 23,
    "b": 15
  },
  "hsl": {
    "h": 9.412,
    "s": 62.963,
    "l": 15.882
  },
  "oklch": {
    "l": 0.27005,
    "c": 0.06897,
    "h": 32.4
  },
  "luminance": 0.01806
}

Semantic roles & 50–950 ramp

primary

#42170F

secondary

#30717C

accent

#CCE642

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#0A0301

muted

#7C7877

Preview Lab

Preview with #42170F

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

Preview Lab → · Contrast checker → · Palette generator →