#423F06#423F06

#423F06 is a dark, moderate yellow. Relative luminance 0.047; OKLCH L 35.9% C 0.073 H 106.3°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX#423F06
RGBrgb(66, 63, 6)
HSLhsl(57, 83%, 14%)
HSVhsv(57, 91%, 26%)
CMYKcmyk(0%, 4.5%, 90.9%, 74.1%)
CIE-LABlab(25.94, -6.04, 32.27)
CIE-LCHlch(25.94, 32.83, 100.60°)
OKLaboklab(35.95% -0.0204 0.0697)
OKLCHoklch(35.95% 0.073 106.3)
XYZxyz(4.0573, 4.7266, 0.8709)
Luminance0.0473 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#423F06 #060942
analogous
#422106 #423F06 #274206
triadic
#423F06 #06423F #3F0642
tetradic
#423F06 #064221 #060942 #420627
square
#423F06 #064221 #060942 #420627
split-complementary
#423F06 #062742 #210642
monochromatic
#1C1B03 #1C1B03 #423F06 #7A750B #B2AA10

Accessibility & contrast

On white

10.80
#423F06 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.95
#423F06 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423F06
10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##423F06#FFFFFF#000000##FFFFFF
##423F061.0010.801.9510.80
#FFFFFF10.801.0021.001.00
#0000001.9521.001.0021.00
##FFFFFF10.801.0021.001.00

Color blindness preview

Protanopia (red-blind)
#453C00
Deuteranopia (green-blind)
#473E0B
Tritanopia (blue-blind)
#483A35
Achromatopsia (no color)
#3D3D3D

Design tokens & code

CSS
--color: #423f06;
/* rgb */ color: rgb(66, 63, 6);
/* oklch */ color: oklch(35.9% 0.073 106.3);
Tailwind
colors: {
  custom: {
    50: '#79734c',
    500: '#423f06',
    950: '#000000',
  },
}
SCSS
$custom: #423f06;
$custom-light: #79734c;
$custom-dark: #000000;
JSON
{
  "hex": "#423f06",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 6
  },
  "hsl": {
    "h": 57,
    "s": 83.333,
    "l": 14.118
  },
  "oklch": {
    "l": 0.3595,
    "c": 0.07266,
    "h": 106.3
  },
  "luminance": 0.04726
}

Semantic roles & 50–950 ramp

primary
#423F06
secondary
#222782
accent
#38FA2E
background
#F7F6F4
surface
#EEECE7
border
#C9C7C3
text
#090801
muted
#7B7B77

Preview Lab

Preview with #423F06

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

Preview Lab → · Contrast checker → · Palette generator →

#423F06 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva