#423F0F#423F0F

#423F0F is a dark, moderate yellow. Relative luminance 0.047; OKLCH L 36.0% C 0.066 H 105.8°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#423F0F
RGB	rgb(66, 63, 15)
HSL	hsl(56, 63%, 16%)
HSV	hsv(56, 77%, 26%)
CMYK	cmyk(0%, 4.5%, 77.3%, 74.1%)
CIE-LAB	lab(26.00, -5.54, 28.52)
CIE-LCH	lch(26.00, 29.05, 101.00°)
OKLab	oklab(36.02% -0.018 0.0638)
OKLCH	oklch(36.02% 0.066 105.8)
XYZ	xyz(4.1107, 4.7479, 1.1517)
Luminance	0.0475 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423F0F #0F1242

analogous

#42250F #423F0F #2B420F

triadic

#423F0F #0F423F #3F0F42

tetradic

#423F0F #0F4225 #0F1242 #420F2B

square

#423F0F #0F4225 #0F1242 #420F2B

split-complementary

#423F0F #0F2B42 #250F42

monochromatic

#191806 #191806 #423F0F #746F1A #A69E26

Accessibility & contrast

On white

10.77

#423F0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#423F0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423F0F

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423F0F	#FFFFFF	#000000	##FFFFFF
##423F0F	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)

#453C08

Deuteranopia (green-blind)

#463E12

Tritanopia (blue-blind)

#473A35

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #423f0f;
/* rgb */ color: rgb(66, 63, 15);
/* oklch */ color: oklch(36.0% 0.066 105.8);

Tailwind

colors: {
  custom: {
    50: '#787351',
    500: '#423f0f',
    950: '#000000',
  },
}

SCSS

$custom: #423f0f;
$custom-light: #787351;
$custom-dark: #000000;

JSON

{
  "hex": "#423f0f",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 15
  },
  "hsl": {
    "h": 56.471,
    "s": 62.963,
    "l": 15.882
  },
  "oklch": {
    "l": 0.3602,
    "c": 0.06626,
    "h": 105.8
  },
  "luminance": 0.04748
}

Semantic roles & 50–950 ramp

primary

#423F0F

secondary

#30357C

accent

#4BE642

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #423F0F

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

Preview Lab → · Contrast checker → · Palette generator →