#42380A#42380A

#42380A is a dark, moderate yellow. Relative luminance 0.040; OKLCH L 34.2% C 0.063 H 96.3°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#42380A
RGB	rgb(66, 56, 10)
HSL	hsl(49, 74%, 15%)
HSV	hsv(49, 85%, 26%)
CMYK	cmyk(0%, 15.2%, 84.8%, 74.1%)
CIE-LAB	lab(23.70, -1.42, 28.49)
CIE-LCH	lch(23.70, 28.52, 92.86°)
OKLab	oklab(34.18% -0.0069 0.0627)
OKLCH	oklch(34.18% 0.063 96.3)
XYZ	xyz(3.7159, 4.0087, 0.8651)
Luminance	0.0401 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42380A #0A1442

analogous

#421C0A #42380A #30420A

triadic

#42380A #0A4238 #380A42

tetradic

#42380A #0A421C #0A1442 #420A30

square

#42380A #0A421C #0A1442 #420A30

split-complementary

#42380A #0A3042 #1C0A42

monochromatic

#1B1704 #1B1704 #42380A #776512 #AC921A

Accessibility & contrast

On white

11.66

#42380A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#42380A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42380A

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42380A	#FFFFFF	#000000	##FFFFFF
##42380A	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3704

Deuteranopia (green-blind)

#413A0D

Tritanopia (blue-blind)

#48332F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #42380a;
/* rgb */ color: rgb(66, 56, 10);
/* oklch */ color: oklch(34.2% 0.063 96.3);

Tailwind

colors: {
  custom: {
    50: '#796e4d',
    500: '#42380a',
    950: '#000000',
  },
}

SCSS

$custom: #42380a;
$custom-light: #796e4d;
$custom-dark: #000000;

JSON

{
  "hex": "#42380a",
  "rgb": {
    "r": 66,
    "g": 56,
    "b": 10
  },
  "hsl": {
    "h": 49.286,
    "s": 73.684,
    "l": 14.902
  },
  "oklch": {
    "l": 0.34178,
    "c": 0.06309,
    "h": 96.3
  },
  "luminance": 0.04009
}

Semantic roles & 50–950 ramp

primary

#42380A

secondary

#29387F

accent

#58F037

background

#F7F6F4

surface

#EEEBE7

border

#C9C6C3

text

#090701

muted

#7B7A77

Preview Lab

Preview with #42380A

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

Preview Lab → · Contrast checker → · Palette generator →