#403B0B#403B0B

#403B0B is a dark, moderate yellow. Relative luminance 0.042; OKLCH L 34.7% C 0.065 H 103.2°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#403B0B
RGB	rgb(64, 59, 11)
HSL	hsl(54, 71%, 15%)
HSV	hsv(54, 83%, 25%)
CMYK	cmyk(0%, 7.8%, 82.8%, 74.9%)
CIE-LAB	lab(24.46, -4.33, 28.74)
CIE-LCH	lch(24.46, 29.07, 98.57°)
OKLab	oklab(34.73% -0.0149 0.0635)
OKLCH	oklch(34.73% 0.065 103.2)
XYZ	xyz(3.7389, 4.2422, 0.9384)
Luminance	0.0424 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403B0B #0B1040

analogous

#40210B #403B0B #2B400B

triadic

#403B0B #0B403B #3B0B40

tetradic

#403B0B #0B4021 #0B1040 #400B2B

square

#403B0B #0B4021 #0B1040 #400B2B

split-complementary

#403B0B #0B2B40 #210B40

monochromatic

#1A1804 #1A1804 #403B0B #746B14 #A89B1D

Accessibility & contrast

On white

11.36

#403B0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#403B0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403B0B

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403B0B	#FFFFFF	#000000	##FFFFFF
##403B0B	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413904

Deuteranopia (green-blind)

#433B0E

Tritanopia (blue-blind)

#463632

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #403b0b;
/* rgb */ color: rgb(64, 59, 11);
/* oklch */ color: oklch(34.7% 0.065 103.2);

Tailwind

colors: {
  custom: {
    50: '#77704e',
    500: '#403b0b',
    950: '#000000',
  },
}

SCSS

$custom: #403b0b;
$custom-light: #77704e;
$custom-dark: #000000;

JSON

{
  "hex": "#403b0b",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 11
  },
  "hsl": {
    "h": 54.34,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.34728,
    "c": 0.06521,
    "h": 103.2
  },
  "luminance": 0.04242
}

Semantic roles & 50–950 ramp

primary

#403B0B

secondary

#2A327D

accent

#4BED3A

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090702

muted

#7B7A78

Preview Lab

Preview with #403B0B

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

Preview Lab → · Contrast checker → · Palette generator →