#42401B#42401B

#42401B is a dark, muted yellow. Relative luminance 0.049; OKLCH L 36.4% C 0.055 H 106.0°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#42401B
RGB	rgb(66, 64, 27)
HSL	hsl(57, 42%, 18%)
HSV	hsv(57, 59%, 26%)
CMYK	cmyk(0%, 3%, 59.1%, 74.1%)
CIE-LAB	lab(26.46, -5.16, 22.66)
CIE-LCH	lch(26.46, 23.24, 102.83°)
OKLab	oklab(36.43% -0.0153 0.0533)
OKLCH	oklch(36.43% 0.055 106)
XYZ	xyz(4.2781, 4.9043, 1.7580)
Luminance	0.0490 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42401B #1B1D42

analogous

#422C1B #42401B #30421B

triadic

#42401B #1B4240 #401B42

tetradic

#42401B #1B422C #1B1D42 #421B30

square

#42401B #1B422C #1B1D42 #421B30

split-complementary

#42401B #1B3042 #2C1B42

monochromatic

#161509 #171609 #42401B #6D6A2D #99943F

Accessibility & contrast

On white

10.60

#42401B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#42401B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42401B

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42401B	#FFFFFF	#000000	##FFFFFF
##42401B	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453E18

Deuteranopia (green-blind)

#463F1D

Tritanopia (blue-blind)

#473C38

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #42401b;
/* rgb */ color: rgb(66, 64, 27);
/* oklch */ color: oklch(36.4% 0.055 106.0);

Tailwind

colors: {
  custom: {
    50: '#787458',
    500: '#42401b',
    950: '#000000',
  },
}

SCSS

$custom: #42401b;
$custom-light: #787458;
$custom-dark: #000000;

JSON

{
  "hex": "#42401b",
  "rgb": {
    "r": 66,
    "g": 64,
    "b": 27
  },
  "hsl": {
    "h": 56.923,
    "s": 41.935,
    "l": 18.235
  },
  "oklch": {
    "l": 0.36425,
    "c": 0.0554,
    "h": 106
  },
  "luminance": 0.04904
}

Semantic roles & 50–950 ramp

primary

#42401B

secondary

#414478

accent

#5CD256

background

#F7F7F5

surface

#EDEDE9

border

#C8C8C5

text

#090803

muted

#7B7B78

Preview Lab

Preview with #42401B

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

Preview Lab → · Contrast checker → · Palette generator →