#42491B#42491B

#42491B is a dark, moderate yellow. Relative luminance 0.060; OKLCH L 38.8% C 0.068 H 116.9°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#42491B
RGB	rgb(66, 73, 27)
HSL	hsl(69, 46%, 20%)
HSV	hsv(69, 63%, 29%)
CMYK	cmyk(9.6%, 0%, 63%, 71.4%)
CIE-LAB	lab(29.42, -10.61, 26.06)
CIE-LCH	lch(29.42, 28.14, 112.15°)
OKLab	oklab(38.79% -0.0307 0.0606)
OKLCH	oklch(38.79% 0.068 116.9)
XYZ	xyz(4.8272, 6.0025, 1.9410)
Luminance	0.0600 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42491B #221B49

analogous

#49391B #42491B #2B491B

triadic

#42491B #1B4249 #491B42

tetradic

#42491B #1B4939 #221B49 #491B2B

square

#42491B #1B4939 #221B49 #491B2B

split-complementary

#42491B #1B2B49 #391B49

monochromatic

#141608 #1A1C0A #42491B #6A762C #93A23C

Accessibility & contrast

On white

9.54

#42491B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#42491B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42491B

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42491B	#FFFFFF	#000000	##FFFFFF
##42491B	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4516

Deuteranopia (green-blind)

#4D461E

Tritanopia (blue-blind)

#46453F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #42491b;
/* rgb */ color: rgb(66, 73, 27);
/* oklch */ color: oklch(38.8% 0.068 116.9);

Tailwind

colors: {
  custom: {
    50: '#787b59',
    500: '#42491b',
    950: '#000000',
  },
}

SCSS

$custom: #42491b;
$custom-light: #787b59;
$custom-dark: #000000;

JSON

{
  "hex": "#42491b",
  "rgb": {
    "r": 66,
    "g": 73,
    "b": 27
  },
  "hsl": {
    "h": 69.13,
    "s": 46,
    "l": 19.608
  },
  "oklch": {
    "l": 0.38787,
    "c": 0.06794,
    "h": 116.9
  },
  "luminance": 0.06002
}

Semantic roles & 50–950 ramp

primary

#42491B

secondary

#4A417F

accent

#52D666

background

#F7F7F5

surface

#EDEDE9

border

#C8C8C5

text

#090903

muted

#7B7B78

Preview Lab

Preview with #42491B

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

Preview Lab → · Contrast checker → · Palette generator →