#42431B#42431B

#42431B is a dark, muted yellow. Relative luminance 0.053; OKLCH L 37.2% C 0.059 H 110.3°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#42431B
RGB	rgb(66, 67, 27)
HSL	hsl(62, 43%, 18%)
HSV	hsv(62, 60%, 26%)
CMYK	cmyk(1.5%, 0%, 59.7%, 73.7%)
CIE-LAB	lab(27.44, -7.01, 23.80)
CIE-LCH	lch(27.44, 24.81, 106.41°)
OKLab	oklab(37.21% -0.0206 0.0557)
OKLCH	oklch(37.21% 0.059 110.3)
XYZ	xyz(4.4519, 5.2518, 1.8159)
Luminance	0.0525 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42431B #1C1B43

analogous

#43301B #42431B #2E431B

triadic

#42431B #1B4243 #431B42

tetradic

#42431B #1B4330 #1C1B43 #431B2E

square

#42431B #1B4330 #1C1B43 #431B2E

split-complementary

#42431B #1B2E43 #301B43

monochromatic

#151609 #171709 #42431B #6D6F2D #989A3E

Accessibility & contrast

On white

10.24

#42431B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#42431B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42431B

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42431B	#FFFFFF	#000000	##FFFFFF
##42431B	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484017

Deuteranopia (green-blind)

#49411D

Tritanopia (blue-blind)

#473F3A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #42431b;
/* rgb */ color: rgb(66, 67, 27);
/* oklch */ color: oklch(37.2% 0.059 110.3);

Tailwind

colors: {
  custom: {
    50: '#787759',
    500: '#42431b',
    950: '#000000',
  },
}

SCSS

$custom: #42431b;
$custom-light: #787759;
$custom-dark: #000000;

JSON

{
  "hex": "#42431b",
  "rgb": {
    "r": 66,
    "g": 67,
    "b": 27
  },
  "hsl": {
    "h": 61.5,
    "s": 42.553,
    "l": 18.431
  },
  "oklch": {
    "l": 0.37205,
    "c": 0.05939,
    "h": 110.3
  },
  "luminance": 0.05252
}

Semantic roles & 50–950 ramp

primary

#42431B

secondary

#434179

accent

#55D259

background

#F7F7F5

surface

#EDEDE9

border

#C8C8C5

text

#090803

muted

#7B7B78

Preview Lab

Preview with #42431B

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

Preview Lab → · Contrast checker → · Palette generator →