#423F10#423F10

#423F10 is a dark, moderate yellow. Relative luminance 0.048; OKLCH L 36.0% C 0.065 H 105.7°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#423F10
RGB	rgb(66, 63, 16)
HSL	hsl(56, 61%, 16%)
HSV	hsv(56, 76%, 26%)
CMYK	cmyk(0%, 4.5%, 75.8%, 74.1%)
CIE-LAB	lab(26.01, -5.48, 28.05)
CIE-LCH	lch(26.01, 28.58, 101.05°)
OKLab	oklab(36.03% -0.0177 0.063)
OKLCH	oklch(36.03% 0.065 105.7)
XYZ	xyz(4.1180, 4.7508, 1.1902)
Luminance	0.0475 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423F10 #101342

analogous

#422610 #423F10 #2C4210

triadic

#423F10 #10423F #3F1042

tetradic

#423F10 #104226 #101342 #42102C

square

#423F10 #104226 #101342 #42102C

split-complementary

#423F10 #102C42 #261042

monochromatic

#191806 #191806 #423F10 #736E1C #A59D28

Accessibility & contrast

On white

10.77

#423F10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#423F10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423F10

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423F10	#FFFFFF	#000000	##FFFFFF
##423F10	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453C09

Deuteranopia (green-blind)

#463E13

Tritanopia (blue-blind)

#473A35

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #423f10;
/* rgb */ color: rgb(66, 63, 16);
/* oklch */ color: oklch(36.0% 0.065 105.7);

Tailwind

colors: {
  custom: {
    50: '#787351',
    500: '#423f10',
    950: '#000000',
  },
}

SCSS

$custom: #423f10;
$custom-light: #787351;
$custom-dark: #000000;

JSON

{
  "hex": "#423f10",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 16
  },
  "hsl": {
    "h": 56.4,
    "s": 60.976,
    "l": 16.078
  },
  "oklch": {
    "l": 0.3603,
    "c": 0.06541,
    "h": 105.7
  },
  "luminance": 0.04751
}

Semantic roles & 50–950 ramp

primary

#423F10

secondary

#32367C

accent

#4DE444

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #423F10

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

Preview Lab → · Contrast checker → · Palette generator →