#40591C#40591C

#40591C is a dark, moderate yellow-green. Relative luminance 0.083; OKLCH L 43.0% C 0.092 H 128.7°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#40591C
RGB	rgb(64, 89, 28)
HSL	hsl(85, 52%, 23%)
HSV	hsv(85, 69%, 35%)
CMYK	cmyk(28.1%, 0%, 68.5%, 65.1%)
CIE-LAB	lab(34.64, -20.33, 31.28)
CIE-LCH	lch(34.64, 37.31, 123.02°)
OKLab	oklab(42.96% -0.0575 0.0719)
OKLCH	oklch(42.96% 0.092 128.7)
XYZ	xyz(5.8963, 8.3185, 2.3934)
Luminance	0.0832 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40591C #351C59

analogous

#59531C #40591C #21591C

triadic

#40591C #1C4059 #591C40

tetradic

#40591C #1C5953 #351C59 #591C21

square

#40591C #1C5953 #351C59 #591C21

split-complementary

#40591C #1C2159 #531C59

monochromatic

#111707 #1F2A0D #40591C #61882B #83B639

Accessibility & contrast

On white

7.88

#40591C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#40591C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40591C

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40591C	#FFFFFF	#000000	##FFFFFF
##40591C	1.00	7.88	2.66	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5314

Deuteranopia (green-blind)

#5A5121

Tritanopia (blue-blind)

#42554C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #40591c;
/* rgb */ color: rgb(64, 89, 28);
/* oklch */ color: oklch(43.0% 0.092 128.7);

Tailwind

colors: {
  custom: {
    50: '#77885b',
    500: '#40591c',
    950: '#000000',
  },
}

SCSS

$custom: #40591c;
$custom-light: #77885b;
$custom-dark: #000000;

JSON

{
  "hex": "#40591c",
  "rgb": {
    "r": 64,
    "g": 89,
    "b": 28
  },
  "hsl": {
    "h": 84.59,
    "s": 52.137,
    "l": 22.941
  },
  "oklch": {
    "l": 0.4296,
    "c": 0.09206,
    "h": 128.7
  },
  "luminance": 0.08319
}

Semantic roles & 50–950 ramp

primary

#40591C

secondary

#62428F

accent

#4CDC87

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #40591C

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

Preview Lab → · Contrast checker → · Palette generator →