#42370F#42370F

#42370F is a dark, muted yellow. Relative luminance 0.039; OKLCH L 34.0% C 0.058 H 93.5°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#42370F
RGB	rgb(66, 55, 15)
HSL	hsl(47, 63%, 16%)
HSV	hsv(47, 77%, 26%)
CMYK	cmyk(0%, 16.7%, 77.3%, 74.1%)
CIE-LAB	lab(23.42, -0.48, 25.88)
CIE-LCH	lch(23.42, 25.89, 91.06°)
OKLab	oklab(33.97% -0.0036 0.0582)
OKLCH	oklch(33.97% 0.058 93.5)
XYZ	xyz(3.6994, 3.9253, 1.0147)
Luminance	0.0393 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42370F #0F1A42

analogous

#421D0F #42370F #33420F

triadic

#42370F #0F4237 #370F42

tetradic

#42370F #0F421D #0F1A42 #420F33

square

#42370F #0F421D #0F1A42 #420F33

split-complementary

#42370F #0F3342 #1D0F42

monochromatic

#191506 #191506 #42370F #74611A #A68A26

Accessibility & contrast

On white

11.76

#42370F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#42370F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42370F

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42370F	#FFFFFF	#000000	##FFFFFF
##42370F	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E360A

Deuteranopia (green-blind)

#403911

Tritanopia (blue-blind)

#48322F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #42370f;
/* rgb */ color: rgb(66, 55, 15);
/* oklch */ color: oklch(34.0% 0.058 93.5);

Tailwind

colors: {
  custom: {
    50: '#796d50',
    500: '#42370f',
    950: '#000000',
  },
}

SCSS

$custom: #42370f;
$custom-light: #796d50;
$custom-dark: #000000;

JSON

{
  "hex": "#42370f",
  "rgb": {
    "r": 66,
    "g": 55,
    "b": 15
  },
  "hsl": {
    "h": 47.059,
    "s": 62.963,
    "l": 15.882
  },
  "oklch": {
    "l": 0.33972,
    "c": 0.05831,
    "h": 93.5
  },
  "luminance": 0.03925
}

Semantic roles & 50–950 ramp

primary

#42370F

secondary

#30417C

accent

#65E642

background

#F7F6F4

surface

#EDEBE7

border

#C8C6C3

text

#090702

muted

#7B7A78

Preview Lab

Preview with #42370F

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

Preview Lab → · Contrast checker → · Palette generator →