#403904#403904

#403904 is a dark, moderate yellow. Relative luminance 0.040; OKLCH L 34.2% C 0.068 H 101.2°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#403904
RGB	rgb(64, 57, 4)
HSL	hsl(53, 88%, 13%)
HSV	hsv(53, 94%, 25%)
CMYK	cmyk(0%, 10.9%, 93.8%, 74.9%)
CIE-LAB	lab(23.75, -3.45, 30.91)
CIE-LCH	lch(23.75, 31.10, 96.36°)
OKLab	oklab(34.15% -0.0133 0.067)
OKLCH	oklch(34.15% 0.068 101.2)
XYZ	xyz(3.5996, 4.0252, 0.7022)
Luminance	0.0403 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403904 #040B40

analogous

#401B04 #403904 #294004

triadic

#403904 #044039 #390440

tetradic

#403904 #04401B #040B40 #400429

square

#403904 #04401B #040B40 #400429

split-complementary

#403904 #042940 #1B0440

monochromatic

#1D1A02 #1D1A02 #403904 #7A6C08 #B3A00B

Accessibility & contrast

On white

11.63

#403904 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#403904 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403904

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403904	#FFFFFF	#000000	##FFFFFF
##403904	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403700

Deuteranopia (green-blind)

#423A08

Tritanopia (blue-blind)

#46342F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #403904;
/* rgb */ color: rgb(64, 57, 4);
/* oklch */ color: oklch(34.2% 0.068 101.2);

Tailwind

colors: {
  custom: {
    50: '#786f4a',
    500: '#403904',
    950: '#000000',
  },
}

SCSS

$custom: #403904;
$custom-light: #786f4a;
$custom-dark: #000000;

JSON

{
  "hex": "#403904",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 4
  },
  "hsl": {
    "h": 53,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.34154,
    "c": 0.06831,
    "h": 101.2
  },
  "luminance": 0.04025
}

Semantic roles & 50–950 ramp

primary

#403904

secondary

#1F2A81

accent

#42FE29

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090701

muted

#7B7A77

Preview Lab

Preview with #403904

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

Preview Lab → · Contrast checker → · Palette generator →