#403F2F#403F2F

#403F2F is a dark, muted yellow. Relative luminance 0.049; OKLCH L 36.4% C 0.026 H 104.7°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#403F2F
RGB	rgb(64, 63, 47)
HSL	hsl(56, 15%, 22%)
HSV	hsv(56, 27%, 25%)
CMYK	cmyk(0%, 1.6%, 26.6%, 74.9%)
CIE-LAB	lab(26.30, -2.75, 10.00)
CIE-LCH	lch(26.30, 10.37, 105.35°)
OKLab	oklab(36.37% -0.0066 0.0254)
OKLCH	oklch(36.37% 0.026 104.7)
XYZ	xyz(4.4049, 4.8503, 3.3929)
Luminance	0.0485 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F2F #2F3040

analogous

#40372F #403F2F #39402F

triadic

#403F2F #2F403F #3F2F40

tetradic

#403F2F #2F4037 #2F3040 #402F39

square

#403F2F #2F4037 #2F3040 #402F39

split-complementary

#403F2F #2F3940 #372F40

monochromatic

#12110D #1D1C15 #403F2F #636249 #878463

Accessibility & contrast

On white

10.66

#403F2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#403F2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F2F

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F2F	#FFFFFF	#000000	##FFFFFF
##403F2F	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423E2E

Deuteranopia (green-blind)

#423F30

Tritanopia (blue-blind)

#433D3B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #403f2f;
/* rgb */ color: rgb(64, 63, 47);
/* oklch */ color: oklch(36.4% 0.026 104.7);

Tailwind

colors: {
  custom: {
    50: '#757467',
    500: '#403f2f',
    950: '#000000',
  },
}

SCSS

$custom: #403f2f;
$custom-light: #757467;
$custom-dark: #000000;

JSON

{
  "hex": "#403f2f",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 47
  },
  "hsl": {
    "h": 56.471,
    "s": 15.315,
    "l": 21.765
  },
  "oklch": {
    "l": 0.36372,
    "c": 0.02624,
    "h": 104.7
  },
  "luminance": 0.0485
}

Semantic roles & 50–950 ramp

primary

#403F2F

secondary

#5B5C70

accent

#74B870

background

#F7F7F6

surface

#EDEDEB

border

#C8C8C6

text

#080806

muted

#7B7B7A

Preview Lab

Preview with #403F2F

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

Preview Lab → · Contrast checker → · Palette generator →