#40400F#40400F

#40400F is a dark, moderate yellow. Relative luminance 0.048; OKLCH L 36.1% C 0.068 H 109.4°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#40400F
RGB	rgb(64, 64, 15)
HSL	hsl(60, 62%, 15%)
HSV	hsv(60, 77%, 25%)
CMYK	cmyk(0%, 0%, 76.6%, 74.9%)
CIE-LAB	lab(26.13, -7.19, 28.58)
CIE-LCH	lch(26.13, 29.47, 104.13°)
OKLab	oklab(36.07% -0.0225 0.064)
OKLCH	oklch(36.07% 0.068 109.4)
XYZ	xyz(4.0341, 4.7914, 1.1642)
Luminance	0.0479 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40400F #0F0F40

analogous

#40270F #40400F #27400F

triadic

#40400F #0F4040 #400F40

tetradic

#40400F #0F4027 #0F0F40 #400F27

square

#40400F #0F4027 #0F0F40 #400F27

split-complementary

#40400F #0F2740 #270F40

monochromatic

#191906 #191906 #40400F #72721B #A3A326

Accessibility & contrast

On white

10.72

#40400F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#40400F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40400F

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40400F	#FFFFFF	#000000	##FFFFFF
##40400F	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463D08

Deuteranopia (green-blind)

#463F12

Tritanopia (blue-blind)

#453B36

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #40400f;
/* rgb */ color: rgb(64, 64, 15);
/* oklch */ color: oklch(36.1% 0.068 109.4);

Tailwind

colors: {
  custom: {
    50: '#777451',
    500: '#40400f',
    950: '#000000',
  },
}

SCSS

$custom: #40400f;
$custom-light: #777451;
$custom-dark: #000000;

JSON

{
  "hex": "#40400f",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 15
  },
  "hsl": {
    "h": 60,
    "s": 62.025,
    "l": 15.49
  },
  "oklch": {
    "l": 0.36073,
    "c": 0.06782,
    "h": 109.4
  },
  "luminance": 0.04791
}

Semantic roles & 50–950 ramp

primary

#40400F

secondary

#30307A

accent

#43E543

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #40400F

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

Preview Lab → · Contrast checker → · Palette generator →