#42580F#42580F

#42580F is a dark, moderate yellow-green. Relative luminance 0.082; OKLCH L 42.7% C 0.099 H 125.5°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#42580F
RGB	rgb(66, 88, 15)
HSL	hsl(78, 71%, 20%)
HSV	hsv(78, 83%, 35%)
CMYK	cmyk(25%, 0%, 83%, 65.5%)
CIE-LAB	lab(34.34, -19.87, 36.58)
CIE-LCH	lch(34.34, 41.63, 118.51°)
OKLab	oklab(42.72% -0.0577 0.0808)
OKLCH	oklch(42.72% 0.099 125.5)
XYZ	xyz(5.8228, 8.1721, 1.7225)
Luminance	0.0817 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42580F #250F58

analogous

#58490F #42580F #1E580F

triadic

#42580F #0F4258 #580F42

tetradic

#42580F #0F5849 #250F58 #580F1E

square

#42580F #0F5849 #250F58 #580F1E

split-complementary

#42580F #0F1E58 #490F58

monochromatic

#141A04 #1B2406 #42580F #698C18 #90C121

Accessibility & contrast

On white

7.97

#42580F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#42580F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42580F

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42580F	#FFFFFF	#000000	##FFFFFF
##42580F	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5200

Deuteranopia (green-blind)

#5A5016

Tritanopia (blue-blind)

#45534A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #42580f;
/* rgb */ color: rgb(66, 88, 15);
/* oklch */ color: oklch(42.7% 0.099 125.5);

Tailwind

colors: {
  custom: {
    50: '#798754',
    500: '#42580f',
    950: '#000000',
  },
}

SCSS

$custom: #42580f;
$custom-light: #798754;
$custom-dark: #000000;

JSON

{
  "hex": "#42580f",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 15
  },
  "hsl": {
    "h": 78.082,
    "s": 70.874,
    "l": 20.196
  },
  "oklch": {
    "l": 0.42722,
    "c": 0.09923,
    "h": 125.5
  },
  "luminance": 0.08172
}

Semantic roles & 50–950 ramp

primary

#42580F

secondary

#4E3192

accent

#3AEE70

background

#F7F8F5

surface

#EEEFE9

border

#C9CAC5

text

#090B03

muted

#7B7C78

Preview Lab

Preview with #42580F

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

Preview Lab → · Contrast checker → · Palette generator →