#403803#403803

#403803 is a dark, moderate yellow. Relative luminance 0.039; OKLCH L 33.9% C 0.068 H 100.0°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#403803
RGB	rgb(64, 56, 3)
HSL	hsl(52, 91%, 13%)
HSV	hsv(52, 95%, 25%)
CMYK	cmyk(0%, 12.5%, 95.3%, 74.9%)
CIE-LAB	lab(23.42, -2.86, 30.99)
CIE-LCH	lch(23.42, 31.12, 95.28°)
OKLab	oklab(33.89% -0.0118 0.0671)
OKLCH	oklch(33.89% 0.068 100)
XYZ	xyz(3.5452, 3.9251, 0.6570)
Luminance	0.0393 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403803 #030B40

analogous

#401903 #403803 #294003

triadic

#403803 #034038 #380340

tetradic

#403803 #034019 #030B40 #400329

square

#403803 #034019 #030B40 #400329

split-complementary

#403803 #032940 #190340

monochromatic

#1D1A01 #1D1A01 #403803 #7A6B06 #B59E08

Accessibility & contrast

On white

11.76

#403803 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#403803 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403803

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403803	#FFFFFF	#000000	##FFFFFF
##403803	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3600

Deuteranopia (green-blind)

#413907

Tritanopia (blue-blind)

#46332E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #403803;
/* rgb */ color: rgb(64, 56, 3);
/* oklch */ color: oklch(33.9% 0.068 100.0);

Tailwind

colors: {
  custom: {
    50: '#786e49',
    500: '#403803',
    950: '#000000',
  },
}

SCSS

$custom: #403803;
$custom-light: #786e49;
$custom-dark: #000000;

JSON

{
  "hex": "#403803",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 3
  },
  "hsl": {
    "h": 52.131,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.33888,
    "c": 0.06817,
    "h": 100
  },
  "luminance": 0.03925
}

Semantic roles & 50–950 ramp

primary

#403803

secondary

#1D2A82

accent

#45FF29

background

#F7F6F4

surface

#EDEBE7

border

#C8C6C3

text

#090701

muted

#7B7A77

Preview Lab

Preview with #403803

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

Preview Lab → · Contrast checker → · Palette generator →