#42391B#42391B

#42391B is a dark, muted yellow. Relative luminance 0.042; OKLCH L 34.6% C 0.047 H 93.1°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#42391B
RGB	rgb(66, 57, 27)
HSL	hsl(46, 42%, 18%)
HSV	hsv(46, 59%, 26%)
CMYK	cmyk(0%, 13.6%, 59.1%, 74.1%)
CIE-LAB	lab(24.21, -0.73, 19.98)
CIE-LCH	lch(24.21, 20.00, 92.09°)
OKLab	oklab(34.64% -0.0026 0.0474)
OKLCH	oklch(34.64% 0.047 93.1)
XYZ	xyz(3.9079, 4.1638, 1.6346)
Luminance	0.0416 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42391B #1B2442

analogous

#42251B #42391B #37421B

triadic

#42391B #1B4239 #391B42

tetradic

#42391B #1B4225 #1B2442 #421B37

square

#42391B #1B4225 #1B2442 #421B37

split-complementary

#42391B #1B3742 #251B42

monochromatic

#161309 #171309 #42391B #6D5F2D #99843F

Accessibility & contrast

On white

11.46

#42391B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#42391B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42391B

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42391B	#FFFFFF	#000000	##FFFFFF
##42391B	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3818

Deuteranopia (green-blind)

#413B1C

Tritanopia (blue-blind)

#473532

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #42391b;
/* rgb */ color: rgb(66, 57, 27);
/* oklch */ color: oklch(34.6% 0.047 93.1);

Tailwind

colors: {
  custom: {
    50: '#786f58',
    500: '#42391b',
    950: '#000000',
  },
}

SCSS

$custom: #42391b;
$custom-light: #786f58;
$custom-dark: #000000;

JSON

{
  "hex": "#42391b",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 27
  },
  "hsl": {
    "h": 46.154,
    "s": 41.935,
    "l": 18.235
  },
  "oklch": {
    "l": 0.34638,
    "c": 0.04748,
    "h": 93.1
  },
  "luminance": 0.04164
}

Semantic roles & 50–950 ramp

primary

#42391B

secondary

#414E78

accent

#73D256

background

#F7F6F5

surface

#EDECE9

border

#C8C7C5

text

#090703

muted

#7B7A78

Preview Lab

Preview with #42391B

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

Preview Lab → · Contrast checker → · Palette generator →