#403703#403703

#403703 is a dark, moderate yellow. Relative luminance 0.038; OKLCH L 33.6% C 0.067 H 98.6°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#403703
RGB	rgb(64, 55, 3)
HSL	hsl(51, 91%, 13%)
HSV	hsv(51, 95%, 25%)
CMYK	cmyk(0%, 14.1%, 95.3%, 74.9%)
CIE-LAB	lab(23.10, -2.22, 30.66)
CIE-LCH	lch(23.10, 30.74, 94.15°)
OKLab	oklab(33.63% -0.01 0.0666)
OKLCH	oklch(33.63% 0.067 98.6)
XYZ	xyz(3.4972, 3.8291, 0.6410)
Luminance	0.0383 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403703 #030C40

analogous

#401803 #403703 #2A4003

triadic

#403703 #034037 #370340

tetradic

#403703 #034018 #030C40 #40032A

square

#403703 #034018 #030C40 #40032A

split-complementary

#403703 #032A40 #180340

monochromatic

#1D1901 #1D1901 #403703 #7A6906 #B59B08

Accessibility & contrast

On white

11.89

#403703 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#403703 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403703

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403703	#FFFFFF	#000000	##FFFFFF
##403703	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3500

Deuteranopia (green-blind)

#403806

Tritanopia (blue-blind)

#46322E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #403703;
/* rgb */ color: rgb(64, 55, 3);
/* oklch */ color: oklch(33.6% 0.067 98.6);

Tailwind

colors: {
  custom: {
    50: '#786d49',
    500: '#403703',
    950: '#000000',
  },
}

SCSS

$custom: #403703;
$custom-light: #786d49;
$custom-dark: #000000;

JSON

{
  "hex": "#403703",
  "rgb": {
    "r": 64,
    "g": 55,
    "b": 3
  },
  "hsl": {
    "h": 51.148,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.33631,
    "c": 0.0673,
    "h": 98.6
  },
  "luminance": 0.03829
}

Semantic roles & 50–950 ramp

primary

#403703

secondary

#1D2C82

accent

#48FF29

background

#F7F6F4

surface

#EDEBE7

border

#C8C6C3

text

#090701

muted

#7B7A77

Preview Lab

Preview with #403703

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

Preview Lab → · Contrast checker → · Palette generator →