#403F10#403F10

#403F10 is a dark, moderate yellow. Relative luminance 0.047; OKLCH L 35.8% C 0.066 H 108.1°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#403F10
RGB	rgb(64, 63, 16)
HSL	hsl(59, 60%, 16%)
HSV	hsv(59, 75%, 25%)
CMYK	cmyk(0%, 1.6%, 75%, 74.9%)
CIE-LAB	lab(25.81, -6.51, 27.78)
CIE-LCH	lch(25.81, 28.53, 103.19°)
OKLab	oklab(35.82% -0.0204 0.0625)
OKLCH	oklch(35.82% 0.066 108.1)
XYZ	xyz(3.9855, 4.6825, 1.1840)
Luminance	0.0468 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F10 #101140

analogous

#402710 #403F10 #294010

triadic

#403F10 #10403F #3F1040

tetradic

#403F10 #104027 #101140 #401029

square

#403F10 #104027 #101140 #401029

split-complementary

#403F10 #102940 #271040

monochromatic

#181806 #181806 #403F10 #716F1C #A29F28

Accessibility & contrast

On white

10.84

#403F10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#403F10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F10

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F10	#FFFFFF	#000000	##FFFFFF
##403F10	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453C09

Deuteranopia (green-blind)

#463E13

Tritanopia (blue-blind)

#453A35

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #403f10;
/* rgb */ color: rgb(64, 63, 16);
/* oklch */ color: oklch(35.8% 0.066 108.1);

Tailwind

colors: {
  custom: {
    50: '#777351',
    500: '#403f10',
    950: '#000000',
  },
}

SCSS

$custom: #403f10;
$custom-light: #777351;
$custom-dark: #000000;

JSON

{
  "hex": "#403f10",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 16
  },
  "hsl": {
    "h": 58.75,
    "s": 60,
    "l": 15.686
  },
  "oklch": {
    "l": 0.35819,
    "c": 0.06574,
    "h": 108.1
  },
  "luminance": 0.04682
}

Semantic roles & 50–950 ramp

primary

#403F10

secondary

#32337A

accent

#48E345

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #403F10

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

Preview Lab → · Contrast checker → · Palette generator →