#420B05#420B05

#420B05 is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.1% C 0.085 H 30.8°. Best body text is #FFFFFF at 16.38:1 contrast (WCAG AA passes).

Color values

HEX	#420B05
RGB	rgb(66, 11, 5)
HSL	hsl(6, 86%, 14%)
HSV	hsv(6, 92%, 26%)
CMYK	cmyk(0%, 83.3%, 92.4%, 74.1%)
CIE-LAB	lab(12.02, 25.81, 16.58)
CIE-LCH	lch(12.02, 30.67, 32.72°)
OKLab	oklab(25.14% 0.073 0.0436)
OKLCH	oklch(25.14% 0.085 30.8)
XYZ	xyz(2.3941, 1.4089, 0.2894)
Luminance	0.0141 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#420B05 #053C42

analogous

#42051E #420B05 #422A05

triadic

#420B05 #05420B #0B0542

tetradic

#420B05 #1E4205 #053C42 #2A0542

square

#420B05 #1E4205 #053C42 #2A0542

split-complementary

#420B05 #05422A #051E42

monochromatic

#1C0502 #1C0502 #420B05 #7B1409 #B41E0E

Accessibility & contrast

On white

16.38

#420B05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#420B05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #420B05

16.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##420B05	#FFFFFF	#000000	##FFFFFF
##420B05	1.00	16.38	1.28	16.38
#FFFFFF	16.38	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1804

Deuteranopia (green-blind)

#292403

Tritanopia (blue-blind)

#4A000A

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #420b05;
/* rgb */ color: rgb(66, 11, 5);
/* oklch */ color: oklch(25.1% 0.085 30.8);

Tailwind

colors: {
  custom: {
    50: '#7c4f48',
    500: '#420b05',
    950: '#000000',
  },
}

SCSS

$custom: #420b05;
$custom-light: #7c4f48;
$custom-dark: #000000;

JSON

{
  "hex": "#420b05",
  "rgb": {
    "r": 66,
    "g": 11,
    "b": 5
  },
  "hsl": {
    "h": 5.902,
    "s": 85.915,
    "l": 13.922
  },
  "oklch": {
    "l": 0.25142,
    "c": 0.08504,
    "h": 30.8
  },
  "luminance": 0.01409
}

Semantic roles & 50–950 ramp

primary

#420B05

secondary

#207982

accent

#E8FC2C

background

#F8F4F4

surface

#EFE7E6

border

#CAC3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #420B05

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

Preview Lab → · Contrast checker → · Palette generator →