#423B0A#423B0A

#423B0A is a dark, moderate yellow. Relative luminance 0.043; OKLCH L 34.9% C 0.066 H 100.8°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#423B0A
RGB	rgb(66, 59, 10)
HSL	hsl(53, 74%, 15%)
HSV	hsv(53, 85%, 26%)
CMYK	cmyk(0%, 10.6%, 84.8%, 74.1%)
CIE-LAB	lab(24.67, -3.33, 29.44)
CIE-LCH	lch(24.67, 29.63, 96.46°)
OKLab	oklab(34.94% -0.0123 0.0647)
OKLCH	oklch(34.94% 0.066 100.8)
XYZ	xyz(3.8657, 4.3083, 0.9151)
Luminance	0.0431 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423B0A #0A1142

analogous

#421F0A #423B0A #2D420A

triadic

#423B0A #0A423B #3B0A42

tetradic

#423B0A #0A421F #0A1142 #420A2D

square

#423B0A #0A421F #0A1142 #420A2D

split-complementary

#423B0A #0A2D42 #1F0A42

monochromatic

#1B1804 #1B1804 #423B0A #776B12 #AC9A1A

Accessibility & contrast

On white

11.28

#423B0A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#423B0A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423B0A

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423B0A	#FFFFFF	#000000	##FFFFFF
##423B0A	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423903

Deuteranopia (green-blind)

#433C0D

Tritanopia (blue-blind)

#483632

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #423b0a;
/* rgb */ color: rgb(66, 59, 10);
/* oklch */ color: oklch(34.9% 0.066 100.8);

Tailwind

colors: {
  custom: {
    50: '#79704d',
    500: '#423b0a',
    950: '#000000',
  },
}

SCSS

$custom: #423b0a;
$custom-light: #79704d;
$custom-dark: #000000;

JSON

{
  "hex": "#423b0a",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 10
  },
  "hsl": {
    "h": 52.5,
    "s": 73.684,
    "l": 14.902
  },
  "oklch": {
    "l": 0.34943,
    "c": 0.06582,
    "h": 100.8
  },
  "luminance": 0.04308
}

Semantic roles & 50–950 ramp

primary

#423B0A

secondary

#29337F

accent

#4FF037

background

#F7F6F4

surface

#EEECE7

border

#C9C7C3

text

#090701

muted

#7B7A77

Preview Lab

Preview with #423B0A

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

Preview Lab → · Contrast checker → · Palette generator →