#423F13#423F13

#423F13 is a dark, moderate yellow. Relative luminance 0.048; OKLCH L 36.1% C 0.063 H 105.4°. Best body text is #FFFFFF at 10.76:1 contrast (WCAG AA passes).

Color values

HEX	#423F13
RGB	rgb(66, 63, 19)
HSL	hsl(56, 55%, 17%)
HSV	hsv(56, 71%, 26%)
CMYK	cmyk(0%, 4.5%, 71.2%, 74.1%)
CIE-LAB	lab(26.04, -5.26, 26.58)
CIE-LCH	lch(26.04, 27.09, 101.19°)
OKLab	oklab(36.06% -0.0167 0.0604)
OKLCH	oklch(36.06% 0.063 105.4)
XYZ	xyz(4.1420, 4.7604, 1.3166)
Luminance	0.0476 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423F13 #131642

analogous

#422813 #423F13 #2E4213

triadic

#423F13 #13423F #3F1342

tetradic

#423F13 #134228 #131642 #42132E

square

#423F13 #134228 #131642 #42132E

split-complementary

#423F13 #132E42 #281342

monochromatic

#181707 #181707 #423F13 #726C21 #A19A2E

Accessibility & contrast

On white

10.76

#423F13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#423F13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423F13

10.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423F13	#FFFFFF	#000000	##FFFFFF
##423F13	1.00	10.76	1.95	10.76
#FFFFFF	10.76	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453D0E

Deuteranopia (green-blind)

#463F16

Tritanopia (blue-blind)

#473A36

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #423f13;
/* rgb */ color: rgb(66, 63, 19);
/* oklch */ color: oklch(36.1% 0.063 105.4);

Tailwind

colors: {
  custom: {
    50: '#787353',
    500: '#423f13',
    950: '#000000',
  },
}

SCSS

$custom: #423f13;
$custom-light: #787353;
$custom-dark: #000000;

JSON

{
  "hex": "#423f13",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 19
  },
  "hsl": {
    "h": 56.17,
    "s": 55.294,
    "l": 16.667
  },
  "oklch": {
    "l": 0.36061,
    "c": 0.06269,
    "h": 105.4
  },
  "luminance": 0.0476
}

Semantic roles & 50–950 ramp

primary

#423F13

secondary

#363B7B

accent

#53DF49

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #423F13

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

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