#42390A#42390A

#42390A is a dark, moderate yellow. Relative luminance 0.041; OKLCH L 34.4% C 0.064 H 97.9°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#42390A
RGB	rgb(66, 57, 10)
HSL	hsl(50, 74%, 15%)
HSV	hsv(50, 85%, 26%)
CMYK	cmyk(0%, 13.6%, 84.8%, 74.1%)
CIE-LAB	lab(24.02, -2.06, 28.81)
CIE-LCH	lch(24.02, 28.88, 94.09°)
OKLab	oklab(34.43% -0.0088 0.0634)
OKLCH	oklch(34.43% 0.064 97.9)
XYZ	xyz(3.7649, 4.1066, 0.8815)
Luminance	0.0411 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42390A #0A1342

analogous

#421D0A #42390A #2F420A

triadic

#42390A #0A4239 #390A42

tetradic

#42390A #0A421D #0A1342 #420A2F

square

#42390A #0A421D #0A1342 #420A2F

split-complementary

#42390A #0A2F42 #1D0A42

monochromatic

#1B1704 #1B1704 #42390A #776712 #AC951A

Accessibility & contrast

On white

11.53

#42390A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#42390A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42390A

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42390A	#FFFFFF	#000000	##FFFFFF
##42390A	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403703

Deuteranopia (green-blind)

#423A0D

Tritanopia (blue-blind)

#483430

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #42390a;
/* rgb */ color: rgb(66, 57, 10);
/* oklch */ color: oklch(34.4% 0.064 97.9);

Tailwind

colors: {
  custom: {
    50: '#796f4d',
    500: '#42390a',
    950: '#000000',
  },
}

SCSS

$custom: #42390a;
$custom-light: #796f4d;
$custom-dark: #000000;

JSON

{
  "hex": "#42390a",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 10
  },
  "hsl": {
    "h": 50.357,
    "s": 73.684,
    "l": 14.902
  },
  "oklch": {
    "l": 0.34432,
    "c": 0.06396,
    "h": 97.9
  },
  "luminance": 0.04106
}

Semantic roles & 50–950 ramp

primary

#42390A

secondary

#29377F

accent

#55F037

background

#F7F6F4

surface

#EEECE7

border

#C9C7C3

text

#090701

muted

#7B7A77

Preview Lab

Preview with #42390A

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

Preview Lab → · Contrast checker → · Palette generator →