#42400A#42400A

#42400A is a dark, moderate yellow. Relative luminance 0.048; OKLCH L 36.2% C 0.071 H 107.3°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#42400A
RGB	rgb(66, 64, 10)
HSL	hsl(58, 74%, 15%)
HSV	hsv(58, 85%, 26%)
CMYK	cmyk(0%, 3%, 84.8%, 74.1%)
CIE-LAB	lab(26.29, -6.45, 30.97)
CIE-LCH	lch(26.29, 31.63, 101.77°)
OKLab	oklab(36.24% -0.0211 0.0679)
OKLCH	oklch(36.24% 0.071 107.3)
XYZ	xyz(4.1351, 4.8471, 1.0049)
Luminance	0.0485 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42400A #0A0C42

analogous

#42240A #42400A #28420A

triadic

#42400A #0A4240 #400A42

tetradic

#42400A #0A4224 #0A0C42 #420A28

square

#42400A #0A4224 #0A0C42 #420A28

split-complementary

#42400A #0A2842 #240A42

monochromatic

#1B1A04 #1B1A04 #42400A #777412 #ACA71A

Accessibility & contrast

On white

10.66

#42400A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#42400A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42400A

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42400A	#FFFFFF	#000000	##FFFFFF
##42400A	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463D02

Deuteranopia (green-blind)

#473F0E

Tritanopia (blue-blind)

#483B36

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #42400a;
/* rgb */ color: rgb(66, 64, 10);
/* oklch */ color: oklch(36.2% 0.071 107.3);

Tailwind

colors: {
  custom: {
    50: '#79744e',
    500: '#42400a',
    950: '#000000',
  },
}

SCSS

$custom: #42400a;
$custom-light: #79744e;
$custom-dark: #000000;

JSON

{
  "hex": "#42400a",
  "rgb": {
    "r": 66,
    "g": 64,
    "b": 10
  },
  "hsl": {
    "h": 57.857,
    "s": 73.684,
    "l": 14.902
  },
  "oklch": {
    "l": 0.3624,
    "c": 0.07109,
    "h": 107.3
  },
  "luminance": 0.04847
}

Semantic roles & 50–950 ramp

primary

#42400A

secondary

#292C7F

accent

#3EF037

background

#F7F7F4

surface

#EEEDE7

border

#C9C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #42400A

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

Preview Lab → · Contrast checker → · Palette generator →