#403903#403903

#403903 is a dark, moderate yellow. Relative luminance 0.040; OKLCH L 34.1% C 0.069 H 101.4°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#403903
RGB	rgb(64, 57, 3)
HSL	hsl(53, 91%, 13%)
HSV	hsv(53, 95%, 25%)
CMYK	cmyk(0%, 10.9%, 95.3%, 74.9%)
CIE-LAB	lab(23.75, -3.50, 31.31)
CIE-LCH	lch(23.75, 31.51, 96.38°)
OKLab	oklab(34.15% -0.0136 0.0677)
OKLCH	oklch(34.15% 0.069 101.4)
XYZ	xyz(3.5941, 4.0230, 0.6733)
Luminance	0.0402 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403903 #030A40

analogous

#401A03 #403903 #284003

triadic

#403903 #034039 #390340

tetradic

#403903 #03401A #030A40 #400328

square

#403903 #03401A #030A40 #400328

split-complementary

#403903 #032840 #1A0340

monochromatic

#1D1A01 #1D1A01 #403903 #7A6D06 #B5A108

Accessibility & contrast

On white

11.64

#403903 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#403903 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403903

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403903	#FFFFFF	#000000	##FFFFFF
##403903	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403700

Deuteranopia (green-blind)

#423A07

Tritanopia (blue-blind)

#46342F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #403903;
/* rgb */ color: rgb(64, 57, 3);
/* oklch */ color: oklch(34.1% 0.069 101.4);

Tailwind

colors: {
  custom: {
    50: '#786f4a',
    500: '#403903',
    950: '#000000',
  },
}

SCSS

$custom: #403903;
$custom-light: #786f4a;
$custom-dark: #000000;

JSON

{
  "hex": "#403903",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 3
  },
  "hsl": {
    "h": 53.115,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.34146,
    "c": 0.06907,
    "h": 101.4
  },
  "luminance": 0.04023
}

Semantic roles & 50–950 ramp

primary

#403903

secondary

#1D2882

accent

#41FF29

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090701

muted

#7B7A77

Preview Lab

Preview with #403903

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

Preview Lab → · Contrast checker → · Palette generator →