#40510F#40510F

#40510F is a dark, moderate yellow-green. Relative luminance 0.070; OKLCH L 40.7% C 0.091 H 123.3°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#40510F
RGB	rgb(64, 81, 15)
HSL	hsl(75, 69%, 19%)
HSV	hsv(75, 81%, 32%)
CMYK	cmyk(21%, 0%, 81.5%, 68.2%)
CIE-LAB	lab(31.83, -17.04, 34.16)
CIE-LCH	lch(31.83, 38.17, 116.51°)
OKLab	oklab(40.65% -0.0498 0.0757)
OKLCH	oklch(40.65% 0.091 123.3)
XYZ	xyz(5.1431, 7.0093, 1.5338)
Luminance	0.0701 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40510F #200F51

analogous

#51410F #40510F #1F510F

triadic

#40510F #0F4051 #510F40

tetradic

#40510F #0F5141 #200F51 #510F1F

square

#40510F #0F5141 #200F51 #510F1F

split-complementary

#40510F #0F1F51 #410F51

monochromatic

#141A05 #171D05 #40510F #698519 #92B822

Accessibility & contrast

On white

8.74

#40510F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#40510F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40510F

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40510F	#FFFFFF	#000000	##FFFFFF
##40510F	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)

#564B03

Deuteranopia (green-blind)

#544B15

Tritanopia (blue-blind)

#444D44

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #40510f;
/* rgb */ color: rgb(64, 81, 15);
/* oklch */ color: oklch(40.7% 0.091 123.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#40510f",
  "rgb": {
    "r": 64,
    "g": 81,
    "b": 15
  },
  "hsl": {
    "h": 75.455,
    "s": 68.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.40651,
    "c": 0.09062,
    "h": 123.3
  },
  "luminance": 0.07009
}

Semantic roles & 50–950 ramp

primary

#40510F

secondary

#48318B

accent

#3CEC69

background

#F7F7F4

surface

#EDEEE7

border

#C8C9C3

text

#090A03

muted

#7B7C78

Preview Lab

Preview with #40510F

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

Preview Lab → · Contrast checker → · Palette generator →