#40510E#40510E

#40510E is a dark, moderate yellow-green. Relative luminance 0.070; OKLCH L 40.6% C 0.091 H 123.3°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#40510E
RGB	rgb(64, 81, 14)
HSL	hsl(75, 71%, 19%)
HSV	hsv(75, 83%, 32%)
CMYK	cmyk(21%, 0%, 82.7%, 68.2%)
CIE-LAB	lab(31.82, -17.10, 34.54)
CIE-LCH	lch(31.82, 38.54, 116.34°)
OKLab	oklab(40.64% -0.05 0.0763)
OKLCH	oklch(40.64% 0.091 123.3)
XYZ	xyz(5.1361, 7.0065, 1.4972)
Luminance	0.0701 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40510E #1F0E51

analogous

#51400E #40510E #1E510E

triadic

#40510E #0E4051 #510E40

tetradic

#40510E #0E5140 #1F0E51 #510E1E

square

#40510E #0E5140 #1F0E51 #510E1E

split-complementary

#40510E #0E1E51 #400E51

monochromatic

#151A05 #171D05 #40510E #698517 #92B920

Accessibility & contrast

On white

8.74

#40510E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#40510E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40510E

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40510E	#FFFFFF	#000000	##FFFFFF
##40510E	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564B02

Deuteranopia (green-blind)

#544B14

Tritanopia (blue-blind)

#444C44

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #40510e;
/* rgb */ color: rgb(64, 81, 14);
/* oklch */ color: oklch(40.6% 0.091 123.3);

Tailwind

colors: {
  custom: {
    50: '#778153',
    500: '#40510e',
    950: '#000000',
  },
}

SCSS

$custom: #40510e;
$custom-light: #778153;
$custom-dark: #000000;

JSON

{
  "hex": "#40510e",
  "rgb": {
    "r": 64,
    "g": 81,
    "b": 14
  },
  "hsl": {
    "h": 75.224,
    "s": 70.526,
    "l": 18.627
  },
  "oklch": {
    "l": 0.40644,
    "c": 0.09126,
    "h": 123.3
  },
  "luminance": 0.07007
}

Semantic roles & 50–950 ramp

primary

#40510E

secondary

#472F8C

accent

#3AED68

background

#F7F7F4

surface

#EDEEE7

border

#C8C9C3

text

#090A02

muted

#7B7C78

Preview Lab

Preview with #40510E

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

Preview Lab → · Contrast checker → · Palette generator →