#420510#420510

#420510 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.7% C 0.090 H 17.5°. Best body text is #FFFFFF at 16.66:1 contrast (WCAG AA passes).

Color values

HEX	#420510
RGB	rgb(66, 5, 16)
HSL	hsl(349, 86%, 14%)
HSV	hsv(349, 92%, 26%)
CMYK	cmyk(0%, 92.4%, 75.8%, 74.1%)
CIE-LAB	lab(11.31, 28.88, 10.69)
CIE-LCH	lch(11.31, 30.79, 20.31°)
OKLab	oklab(24.67% 0.0858 0.0271)
OKLCH	oklch(24.67% 0.09 17.5)
XYZ	xyz(2.3948, 1.3046, 0.6158)
Luminance	0.0130 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#420510 #054237

analogous

#42052F #420510 #421905

triadic

#420510 #104205 #051042

tetradic

#420510 #2F4205 #054237 #190542

square

#420510 #2F4205 #054237 #190542

split-complementary

#420510 #054219 #052F42

monochromatic

#1C0207 #1C0207 #420510 #7B091E #B40E2C

Accessibility & contrast

On white

16.66

#420510 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#420510 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #420510

16.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##420510	#FFFFFF	#000000	##FFFFFF
##420510	1.00	16.66	1.26	16.66
#FFFFFF	16.66	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171610

Deuteranopia (green-blind)

#27230E

Tritanopia (blue-blind)

#490009

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #420510;
/* rgb */ color: rgb(66, 5, 16);
/* oklch */ color: oklch(24.7% 0.090 17.5);

Tailwind

colors: {
  custom: {
    50: '#7c4c4e',
    500: '#420510',
    950: '#000000',
  },
}

SCSS

$custom: #420510;
$custom-light: #7c4c4e;
$custom-dark: #000000;

JSON

{
  "hex": "#420510",
  "rgb": {
    "r": 66,
    "g": 5,
    "b": 16
  },
  "hsl": {
    "h": 349.18,
    "s": 85.915,
    "l": 13.922
  },
  "oklch": {
    "l": 0.24673,
    "c": 0.09,
    "h": 17.5
  },
  "luminance": 0.01304
}

Semantic roles & 50–950 ramp

primary

#420510

secondary

#208271

accent

#FCD72C

background

#F8F4F4

surface

#EFE7E7

border

#CAC3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #420510

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

Preview Lab → · Contrast checker → · Palette generator →