#423F07#423F07

#423F07 is a dark, moderate yellow. Relative luminance 0.047; OKLCH L 36.0% C 0.072 H 106.3°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#423F07
RGB	rgb(66, 63, 7)
HSL	hsl(57, 81%, 14%)
HSV	hsv(57, 89%, 26%)
CMYK	cmyk(0%, 4.5%, 89.4%, 74.1%)
CIE-LAB	lab(25.95, -5.99, 31.87)
CIE-LCH	lch(25.95, 32.43, 100.64°)
OKLab	oklab(35.96% -0.0201 0.0691)
OKLCH	oklch(35.96% 0.072 106.3)
XYZ	xyz(4.0628, 4.7288, 0.8997)
Luminance	0.0473 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423F07 #070A42

analogous

#422207 #423F07 #284207

triadic

#423F07 #07423F #3F0742

tetradic

#423F07 #074222 #070A42 #420728

square

#423F07 #074222 #070A42 #420728

split-complementary

#423F07 #072842 #220742

monochromatic

#1C1A03 #1C1A03 #423F07 #79740D #B1A913

Accessibility & contrast

On white

10.79

#423F07 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#423F07 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423F07

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423F07	#FFFFFF	#000000	##FFFFFF
##423F07	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453C00

Deuteranopia (green-blind)

#473E0C

Tritanopia (blue-blind)

#483A35

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #423f07;
/* rgb */ color: rgb(66, 63, 7);
/* oklch */ color: oklch(36.0% 0.072 106.3);

Tailwind

colors: {
  custom: {
    50: '#79734c',
    500: '#423f07',
    950: '#000000',
  },
}

SCSS

$custom: #423f07;
$custom-light: #79734c;
$custom-dark: #000000;

JSON

{
  "hex": "#423f07",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 7
  },
  "hsl": {
    "h": 56.949,
    "s": 80.822,
    "l": 14.314
  },
  "oklch": {
    "l": 0.35957,
    "c": 0.07198,
    "h": 106.3
  },
  "luminance": 0.04729
}

Semantic roles & 50–950 ramp

primary

#423F07

secondary

#242981

accent

#3BF731

background

#F7F6F4

surface

#EEECE7

border

#C9C7C3

text

#090801

muted

#7B7B77

Preview Lab

Preview with #423F07

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

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