#40510D#40510D

#40510D is a dark, moderate yellow-green. Relative luminance 0.070; OKLCH L 40.6% C 0.092 H 123.2°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#40510D
RGB	rgb(64, 81, 13)
HSL	hsl(75, 72%, 18%)
HSV	hsv(75, 84%, 32%)
CMYK	cmyk(21%, 0%, 84%, 68.2%)
CIE-LAB	lab(31.82, -17.15, 34.90)
CIE-LCH	lch(31.82, 38.89, 116.17°)
OKLab	oklab(40.64% -0.0503 0.0769)
OKLCH	oklch(40.64% 0.092 123.2)
XYZ	xyz(5.1295, 7.0039, 1.4623)
Luminance	0.0700 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40510D #1E0D51

analogous

#51400D #40510D #1E510D

triadic

#40510D #0D4051 #510D40

tetradic

#40510D #0D5140 #1E0D51 #510D1E

square

#40510D #0D5140 #1E0D51 #510D1E

split-complementary

#40510D #0D1E51 #400D51

monochromatic

#151A04 #161C05 #40510D #6A8615 #93BA1E

Accessibility & contrast

On white

8.75

#40510D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#40510D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40510D

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40510D	#FFFFFF	#000000	##FFFFFF
##40510D	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564B00

Deuteranopia (green-blind)

#544B14

Tritanopia (blue-blind)

#444C44

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #40510d;
/* rgb */ color: rgb(64, 81, 13);
/* oklch */ color: oklch(40.6% 0.092 123.2);

Tailwind

colors: {
  custom: {
    50: '#778152',
    500: '#40510d',
    950: '#000000',
  },
}

SCSS

$custom: #40510d;
$custom-light: #778152;
$custom-dark: #000000;

JSON

{
  "hex": "#40510d",
  "rgb": {
    "r": 64,
    "g": 81,
    "b": 13
  },
  "hsl": {
    "h": 75,
    "s": 72.34,
    "l": 18.431
  },
  "oklch": {
    "l": 0.40638,
    "c": 0.09188,
    "h": 123.2
  },
  "luminance": 0.07004
}

Semantic roles & 50–950 ramp

primary

#40510D

secondary

#452E8C

accent

#39EF66

background

#F7F7F4

surface

#EDEEE7

border

#C8C9C3

text

#090A02

muted

#7B7C78

Preview Lab

Preview with #40510D

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

Preview Lab → · Contrast checker → · Palette generator →