#423F0D#423F0D

#423F0D is a dark, moderate yellow. Relative luminance 0.047; OKLCH L 36.0% C 0.068 H 105.9°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#423F0D
RGB	rgb(66, 63, 13)
HSL	hsl(57, 67%, 15%)
HSV	hsv(57, 80%, 26%)
CMYK	cmyk(0%, 4.5%, 80.3%, 74.1%)
CIE-LAB	lab(25.99, -5.67, 29.42)
CIE-LCH	lch(25.99, 29.96, 100.91°)
OKLab	oklab(36% -0.0186 0.0653)
OKLCH	oklch(36% 0.068 105.9)
XYZ	xyz(4.0971, 4.7425, 1.0803)
Luminance	0.0474 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423F0D #0D1042

analogous

#42240D #423F0D #2A420D

triadic

#423F0D #0D423F #3F0D42

tetradic

#423F0D #0D4224 #0D1042 #420D2A

square

#423F0D #0D4224 #0D1042 #420D2A

split-complementary

#423F0D #0D2A42 #240D42

monochromatic

#1A1805 #1A1805 #423F0D #757017 #A8A121

Accessibility & contrast

On white

10.78

#423F0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#423F0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423F0D

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423F0D	#FFFFFF	#000000	##FFFFFF
##423F0D	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453C05

Deuteranopia (green-blind)

#463E10

Tritanopia (blue-blind)

#473A35

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #423f0d;
/* rgb */ color: rgb(66, 63, 13);
/* oklch */ color: oklch(36.0% 0.068 105.9);

Tailwind

colors: {
  custom: {
    50: '#79734f',
    500: '#423f0d',
    950: '#000000',
  },
}

SCSS

$custom: #423f0d;
$custom-light: #79734f;
$custom-dark: #000000;

JSON

{
  "hex": "#423f0d",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 13
  },
  "hsl": {
    "h": 56.604,
    "s": 67.089,
    "l": 15.49
  },
  "oklch": {
    "l": 0.36002,
    "c": 0.06784,
    "h": 105.9
  },
  "luminance": 0.04742
}

Semantic roles & 50–950 ramp

primary

#423F0D

secondary

#2D327E

accent

#48EA3E

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #423F0D

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

Preview Lab → · Contrast checker → · Palette generator →