#40551B#40551B

#40551B is a dark, moderate yellow-green. Relative luminance 0.077; OKLCH L 41.9% C 0.087 H 126.8°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#40551B
RGB	rgb(64, 85, 27)
HSL	hsl(82, 52%, 22%)
HSV	hsv(82, 68%, 33%)
CMYK	cmyk(24.7%, 0%, 68.2%, 66.7%)
CIE-LAB	lab(33.28, -18.30, 30.30)
CIE-LCH	lch(33.28, 35.39, 121.13°)
OKLab	oklab(41.86% -0.052 0.0696)
OKLCH	oklch(41.86% 0.087 126.8)
XYZ	xyz(5.5607, 7.6660, 2.2234)
Luminance	0.0767 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40551B #301B55

analogous

#554D1B #40551B #23551B

triadic

#40551B #1B4055 #551B40

tetradic

#40551B #1B554D #301B55 #551B23

square

#40551B #1B554D #301B55 #551B23

split-complementary

#40551B #1B2355 #4D1B55

monochromatic

#111707 #1D270C #40551B #63832A #86B239

Accessibility & contrast

On white

8.29

#40551B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#40551B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40551B

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40551B	#FFFFFF	#000000	##FFFFFF
##40551B	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A4F14

Deuteranopia (green-blind)

#574E1F

Tritanopia (blue-blind)

#435149

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #40551b;
/* rgb */ color: rgb(64, 85, 27);
/* oklch */ color: oklch(41.9% 0.087 126.8);

Tailwind

colors: {
  custom: {
    50: '#77855a',
    500: '#40551b',
    950: '#000000',
  },
}

SCSS

$custom: #40551b;
$custom-light: #77855a;
$custom-dark: #000000;

JSON

{
  "hex": "#40551b",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 27
  },
  "hsl": {
    "h": 81.724,
    "s": 51.786,
    "l": 21.961
  },
  "oklch": {
    "l": 0.41855,
    "c": 0.08693,
    "h": 126.8
  },
  "luminance": 0.07666
}

Semantic roles & 50–950 ramp

primary

#40551B

secondary

#5C418B

accent

#4DDB80

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #40551B

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

Preview Lab → · Contrast checker → · Palette generator →