#40520B#40520B

#40520B is a dark, moderate yellow-green. Relative luminance 0.071; OKLCH L 40.9% C 0.094 H 123.6°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#40520B
RGB	rgb(64, 82, 11)
HSL	hsl(75, 76%, 18%)
HSV	hsv(75, 87%, 32%)
CMYK	cmyk(22%, 0%, 86.6%, 67.8%)
CIE-LAB	lab(32.14, -17.80, 35.90)
CIE-LCH	lch(32.14, 40.07, 116.37°)
OKLab	oklab(40.9% -0.0522 0.0786)
OKLCH	oklch(40.9% 0.094 123.6)
XYZ	xyz(5.1921, 7.1487, 1.4228)
Luminance	0.0715 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40520B #1D0B52

analogous

#52400B #40520B #1C520B

triadic

#40520B #0B4052 #520B40

tetradic

#40520B #0B5240 #1D0B52 #520B1C

square

#40520B #0B5240 #1D0B52 #520B1C

split-complementary

#40520B #0B1C52 #400B52

monochromatic

#151B04 #161C04 #40520B #6A8812 #94BE19

Accessibility & contrast

On white

8.64

#40520B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#40520B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40520B

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40520B	#FFFFFF	#000000	##FFFFFF
##40520B	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574C00

Deuteranopia (green-blind)

#554B12

Tritanopia (blue-blind)

#444D45

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #40520b;
/* rgb */ color: rgb(64, 82, 11);
/* oklch */ color: oklch(40.9% 0.094 123.6);

Tailwind

colors: {
  custom: {
    50: '#788251',
    500: '#40520b',
    950: '#000000',
  },
}

SCSS

$custom: #40520b;
$custom-light: #788251;
$custom-dark: #000000;

JSON

{
  "hex": "#40520b",
  "rgb": {
    "r": 64,
    "g": 82,
    "b": 11
  },
  "hsl": {
    "h": 75.211,
    "s": 76.344,
    "l": 18.235
  },
  "oklch": {
    "l": 0.40899,
    "c": 0.09438,
    "h": 123.6
  },
  "luminance": 0.07149
}

Semantic roles & 50–950 ramp

primary

#40520B

secondary

#442B8E

accent

#35F365

background

#F7F7F4

surface

#EDEEE7

border

#C8C9C3

text

#090A02

muted

#7B7C78

Preview Lab

Preview with #40520B

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

Preview Lab → · Contrast checker → · Palette generator →