#403F0F#403F0F

#403F0F is a dark, moderate yellow. Relative luminance 0.047; OKLCH L 35.8% C 0.067 H 108.2°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#403F0F
RGB	rgb(64, 63, 15)
HSL	hsl(59, 62%, 15%)
HSV	hsv(59, 77%, 25%)
CMYK	cmyk(0%, 1.6%, 76.6%, 74.9%)
CIE-LAB	lab(25.80, -6.58, 28.25)
CIE-LCH	lch(25.80, 29.00, 103.11°)
OKLab	oklab(35.81% -0.0208 0.0633)
OKLCH	oklch(35.81% 0.067 108.2)
XYZ	xyz(3.9782, 4.6796, 1.1455)
Luminance	0.0468 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F0F #0F1040

analogous

#40260F #403F0F #28400F

triadic

#403F0F #0F403F #3F0F40

tetradic

#403F0F #0F4026 #0F1040 #400F28

square

#403F0F #0F4026 #0F1040 #400F28

split-complementary

#403F0F #0F2840 #260F40

monochromatic

#191806 #191806 #403F0F #72701B #A3A126

Accessibility & contrast

On white

10.85

#403F0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#403F0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F0F

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F0F	#FFFFFF	#000000	##FFFFFF
##403F0F	1.00	10.85	1.94	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453C08

Deuteranopia (green-blind)

#463E12

Tritanopia (blue-blind)

#453A35

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #403f0f;
/* rgb */ color: rgb(64, 63, 15);
/* oklch */ color: oklch(35.8% 0.067 108.2);

Tailwind

colors: {
  custom: {
    50: '#777351',
    500: '#403f0f',
    950: '#000000',
  },
}

SCSS

$custom: #403f0f;
$custom-light: #777351;
$custom-dark: #000000;

JSON

{
  "hex": "#403f0f",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 15
  },
  "hsl": {
    "h": 58.776,
    "s": 62.025,
    "l": 15.49
  },
  "oklch": {
    "l": 0.3581,
    "c": 0.06659,
    "h": 108.2
  },
  "luminance": 0.04679
}

Semantic roles & 50–950 ramp

primary

#403F0F

secondary

#30327A

accent

#46E543

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #403F0F

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

Preview Lab → · Contrast checker → · Palette generator →