#423E0B#423E0B

#423E0B is a dark, moderate yellow. Relative luminance 0.046; OKLCH L 35.7% C 0.068 H 104.8°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX#423E0B
RGBrgb(66, 62, 11)
HSLhsl(56, 71%, 15%)
HSVhsv(56, 83%, 26%)
CMYKcmyk(0%, 6.1%, 83.3%, 74.1%)
CIE-LABlab(25.65, -5.16, 29.96)
CIE-LCHlch(25.65, 30.40, 99.78°)
OKLaboklab(35.73% -0.0174 0.066)
OKLCHoklch(35.73% 0.068 104.8)
XYZxyz(4.0300, 4.6278, 0.9975)
Luminance0.0463 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#423E0B #0B0F42
analogous
#42220B #423E0B #2B420B
triadic
#423E0B #0B423E #3E0B42
tetradic
#423E0B #0B4222 #0B0F42 #420B2B
square
#423E0B #0B4222 #0B0F42 #420B2B
split-complementary
#423E0B #0B2B42 #220B42
monochromatic
#1A1904 #1A1904 #423E0B #766F14 #ABA11C

Accessibility & contrast

On white

10.91
#423E0B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.93
#423E0B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423E0B
10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##423E0B#FFFFFF#000000##FFFFFF
##423E0B1.0010.911.9310.91
#FFFFFF10.911.0021.001.00
#0000001.9321.001.0021.00
##FFFFFF10.911.0021.001.00

Color blindness preview

Protanopia (red-blind)
#443B03
Deuteranopia (green-blind)
#463E0F
Tritanopia (blue-blind)
#483934
Achromatopsia (no color)
#3D3D3D

Design tokens & code

CSS
--color: #423e0b;
/* rgb */ color: rgb(66, 62, 11);
/* oklch */ color: oklch(35.7% 0.068 104.8);
Tailwind
colors: {
  custom: {
    50: '#79734e',
    500: '#423e0b',
    950: '#000000',
  },
}
SCSS
$custom: #423e0b;
$custom-light: #79734e;
$custom-dark: #000000;
JSON
{
  "hex": "#423e0b",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 11
  },
  "hsl": {
    "h": 55.636,
    "s": 71.429,
    "l": 15.098
  },
  "oklch": {
    "l": 0.35726,
    "c": 0.0682,
    "h": 104.8
  },
  "luminance": 0.04628
}

Semantic roles & 50–950 ramp

primary
#423E0B
secondary
#2A307F
accent
#47EE3A
background
#F7F6F4
surface
#EEECE7
border
#C9C7C3
text
#090802
muted
#7B7B78

Preview Lab

Preview with #423E0B

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

Preview Lab → · Contrast checker → · Palette generator →

#423E0B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva