#42440B#42440B

#42440B is a dark, moderate yellow. Relative luminance 0.053; OKLCH L 37.3% C 0.075 H 111.6°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#42440B
RGB	rgb(66, 68, 11)
HSL	hsl(62, 72%, 15%)
HSV	hsv(62, 84%, 27%)
CMYK	cmyk(2.9%, 0%, 83.8%, 73.3%)
CIE-LAB	lab(27.62, -8.83, 31.81)
CIE-LCH	lch(27.62, 33.01, 105.51°)
OKLab	oklab(37.3% -0.0276 0.0699)
OKLCH	oklch(37.3% 0.075 111.6)
XYZ	xyz(4.3744, 5.3168, 1.1123)
Luminance	0.0532 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42440B #0D0B44

analogous

#44290B #42440B #25440B

triadic

#42440B #0B4244 #440B42

tetradic

#42440B #0B4429 #0D0B44 #440B25

square

#42440B #0B4429 #0D0B44 #440B25

split-complementary

#42440B #0B2544 #290B44

monochromatic

#1A1A04 #1A1A04 #42440B #757914 #A8AD1C

Accessibility & contrast

On white

10.18

#42440B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#42440B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42440B

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42440B	#FFFFFF	#000000	##FFFFFF
##42440B	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4002

Deuteranopia (green-blind)

#4A4210

Tritanopia (blue-blind)

#473F39

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #42440b;
/* rgb */ color: rgb(66, 68, 11);
/* oklch */ color: oklch(37.3% 0.075 111.6);

Tailwind

colors: {
  custom: {
    50: '#79774f',
    500: '#42440b',
    950: '#000000',
  },
}

SCSS

$custom: #42440b;
$custom-light: #79774f;
$custom-dark: #000000;

JSON

{
  "hex": "#42440b",
  "rgb": {
    "r": 66,
    "g": 68,
    "b": 11
  },
  "hsl": {
    "h": 62.105,
    "s": 72.152,
    "l": 15.49
  },
  "oklch": {
    "l": 0.373,
    "c": 0.07515,
    "h": 111.6
  },
  "luminance": 0.05317
}

Semantic roles & 50–950 ramp

primary

#42440B

secondary

#2D2A81

accent

#39EF3F

background

#F7F7F4

surface

#EEEDE7

border

#C9C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #42440B

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

Preview Lab → · Contrast checker → · Palette generator →