#42050A#42050A

#42050A is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.6% C 0.090 H 23.0°. Best body text is #FFFFFF at 16.70:1 contrast (WCAG AA passes).

Color values

HEX	#42050A
RGB	rgb(66, 5, 10)
HSL	hsl(355, 86%, 14%)
HSV	hsv(355, 92%, 26%)
CMYK	cmyk(0%, 92.4%, 84.8%, 74.1%)
CIE-LAB	lab(11.20, 28.55, 13.42)
CIE-LCH	lch(11.20, 31.55, 25.17°)
OKLab	oklab(24.56% 0.0832 0.0352)
OKLCH	oklch(24.56% 0.09 23)
XYZ	xyz(2.3561, 1.2891, 0.4119)
Luminance	0.0129 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42050A #05423D

analogous

#420529 #42050A #421F05

triadic

#42050A #0A4205 #050A42

tetradic

#42050A #294205 #05423D #1F0542

square

#42050A #294205 #05423D #1F0542

split-complementary

#42050A #05421F #052942

monochromatic

#1C0204 #1C0204 #42050A #7B0913 #B40E1B

Accessibility & contrast

On white

16.70

#42050A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#42050A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42050A

16.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42050A	#FFFFFF	#000000	##FFFFFF
##42050A	1.00	16.70	1.26	16.70
#FFFFFF	16.70	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18150A

Deuteranopia (green-blind)

#272308

Tritanopia (blue-blind)

#4A0007

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #42050a;
/* rgb */ color: rgb(66, 5, 10);
/* oklch */ color: oklch(24.6% 0.090 23.0);

Tailwind

colors: {
  custom: {
    50: '#7c4c4b',
    500: '#42050a',
    950: '#000000',
  },
}

SCSS

$custom: #42050a;
$custom-light: #7c4c4b;
$custom-dark: #000000;

JSON

{
  "hex": "#42050a",
  "rgb": {
    "r": 66,
    "g": 5,
    "b": 10
  },
  "hsl": {
    "h": 355.082,
    "s": 85.915,
    "l": 13.922
  },
  "oklch": {
    "l": 0.24558,
    "c": 0.09032,
    "h": 23
  },
  "luminance": 0.01289
}

Semantic roles & 50–950 ramp

primary

#42050A

secondary

#20827A

accent

#FCEB2C

background

#F8F4F4

surface

#EFE7E7

border

#CAC3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #42050A

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

Preview Lab → · Contrast checker → · Palette generator →