#403F2B#403F2B

#403F2B is a dark, muted yellow. Relative luminance 0.048; OKLCH L 36.3% C 0.032 H 105.5°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#403F2B
RGB	rgb(64, 63, 43)
HSL	hsl(57, 20%, 21%)
HSV	hsv(57, 33%, 25%)
CMYK	cmyk(0%, 1.6%, 32.8%, 74.9%)
CIE-LAB	lab(26.21, -3.41, 12.46)
CIE-LCH	lch(26.21, 12.92, 105.31°)
OKLab	oklab(36.27% -0.0086 0.0312)
OKLCH	oklch(36.27% 0.032 105.5)
XYZ	xyz(4.3279, 4.8195, 2.9873)
Luminance	0.0482 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F2B #2B2C40

analogous

#40342B #403F2B #36402B

triadic

#403F2B #2B403F #3F2B40

tetradic

#403F2B #2B4034 #2B2C40 #402B36

square

#403F2B #2B4034 #2B2C40 #402B36

split-complementary

#403F2B #2B3640 #342B40

monochromatic

#12120C #1B1B12 #403F2B #656344 #89875C

Accessibility & contrast

On white

10.69

#403F2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#403F2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F2B

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F2B	#FFFFFF	#000000	##FFFFFF
##403F2B	1.00	10.69	1.96	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423D2A

Deuteranopia (green-blind)

#433E2C

Tritanopia (blue-blind)

#433C3A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #403f2b;
/* rgb */ color: rgb(64, 63, 43);
/* oklch */ color: oklch(36.3% 0.032 105.5);

Tailwind

colors: {
  custom: {
    50: '#757464',
    500: '#403f2b',
    950: '#000000',
  },
}

SCSS

$custom: #403f2b;
$custom-light: #757464;
$custom-dark: #000000;

JSON

{
  "hex": "#403f2b",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 43
  },
  "hsl": {
    "h": 57.143,
    "s": 19.626,
    "l": 20.98
  },
  "oklch": {
    "l": 0.36271,
    "c": 0.0324,
    "h": 105.5
  },
  "luminance": 0.04819
}

Semantic roles & 50–950 ramp

primary

#403F2B

secondary

#565771

accent

#6FBC6C

background

#F7F7F6

surface

#EDEDEB

border

#C8C8C6

text

#080805

muted

#7B7B7A

Preview Lab

Preview with #403F2B

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

Preview Lab → · Contrast checker → · Palette generator →