#403B10#403B10

#403B10 is a dark, moderate yellow. Relative luminance 0.043; OKLCH L 34.8% C 0.061 H 102.6°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#403B10
RGB	rgb(64, 59, 16)
HSL	hsl(54, 60%, 16%)
HSV	hsv(54, 75%, 25%)
CMYK	cmyk(0%, 7.8%, 75%, 74.9%)
CIE-LAB	lab(24.50, -4.02, 26.42)
CIE-LCH	lch(24.50, 26.73, 98.64°)
OKLab	oklab(34.78% -0.0134 0.0596)
OKLCH	oklch(34.78% 0.061 102.6)
XYZ	xyz(3.7720, 4.2555, 1.1128)
Luminance	0.0425 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403B10 #101540

analogous

#402310 #403B10 #2D4010

triadic

#403B10 #10403B #3B1040

tetradic

#403B10 #104023 #101540 #40102D

square

#403B10 #104023 #101540 #40102D

split-complementary

#403B10 #102D40 #231040

monochromatic

#181706 #181706 #403B10 #71681C #A29528

Accessibility & contrast

On white

11.35

#403B10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#403B10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403B10

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403B10	#FFFFFF	#000000	##FFFFFF
##403B10	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41390A

Deuteranopia (green-blind)

#423B13

Tritanopia (blue-blind)

#453632

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #403b10;
/* rgb */ color: rgb(64, 59, 16);
/* oklch */ color: oklch(34.8% 0.061 102.6);

Tailwind

colors: {
  custom: {
    50: '#777051',
    500: '#403b10',
    950: '#000000',
  },
}

SCSS

$custom: #403b10;
$custom-light: #777051;
$custom-dark: #000000;

JSON

{
  "hex": "#403b10",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 16
  },
  "hsl": {
    "h": 53.75,
    "s": 60,
    "l": 15.686
  },
  "oklch": {
    "l": 0.34775,
    "c": 0.0611,
    "h": 102.6
  },
  "luminance": 0.04255
}

Semantic roles & 50–950 ramp

primary

#403B10

secondary

#32397A

accent

#55E345

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090702

muted

#7B7A78

Preview Lab

Preview with #403B10

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

Preview Lab → · Contrast checker → · Palette generator →