#403603#403603

#403603 is a dark, moderate yellow. Relative luminance 0.037; OKLCH L 33.4% C 0.066 H 97.1°. Best body text is #FFFFFF at 12.02:1 contrast (WCAG AA passes).

Color values

HEX	#403603
RGB	rgb(64, 54, 3)
HSL	hsl(50, 91%, 13%)
HSV	hsv(50, 95%, 25%)
CMYK	cmyk(0%, 15.6%, 95.3%, 74.9%)
CIE-LAB	lab(22.78, -1.58, 30.32)
CIE-LCH	lch(22.78, 30.37, 92.99°)
OKLab	oklab(33.38% -0.0082 0.066)
OKLCH	oklch(33.38% 0.066 97.1)
XYZ	xyz(3.4502, 3.7351, 0.6253)
Luminance	0.0374 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403603 #030D40

analogous

#401703 #403603 #2B4003

triadic

#403603 #034036 #360340

tetradic

#403603 #034017 #030D40 #40032B

square

#403603 #034017 #030D40 #40032B

split-complementary

#403603 #032B40 #170340

monochromatic

#1D1901 #1D1901 #403603 #7A6706 #B59908

Accessibility & contrast

On white

12.02

#403603 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#403603 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403603

12.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403603	#FFFFFF	#000000	##FFFFFF
##403603	1.00	12.02	1.75	12.02
#FFFFFF	12.02	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3400

Deuteranopia (green-blind)

#3F3806

Tritanopia (blue-blind)

#46312D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #403603;
/* rgb */ color: rgb(64, 54, 3);
/* oklch */ color: oklch(33.4% 0.066 97.1);

Tailwind

colors: {
  custom: {
    50: '#786c49',
    500: '#403603',
    950: '#000000',
  },
}

SCSS

$custom: #403603;
$custom-light: #786c49;
$custom-dark: #000000;

JSON

{
  "hex": "#403603",
  "rgb": {
    "r": 64,
    "g": 54,
    "b": 3
  },
  "hsl": {
    "h": 50.164,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.33376,
    "c": 0.06648,
    "h": 97.1
  },
  "luminance": 0.03735
}

Semantic roles & 50–950 ramp

primary

#403603

secondary

#1D2D82

accent

#4CFF29

background

#F7F6F4

surface

#EDEBE7

border

#C8C6C3

text

#090701

muted

#7B7A77

Preview Lab

Preview with #403603

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

Preview Lab → · Contrast checker → · Palette generator →