#577F18#577F18

#577F18 is a mid, vivid yellow-green. Relative luminance 0.173; OKLCH L 54.7% C 0.135 H 129.3°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#577F18
RGB	rgb(87, 127, 24)
HSL	hsl(83, 68%, 30%)
HSV	hsv(83, 81%, 50%)
CMYK	cmyk(31.5%, 0%, 81.1%, 50.2%)
CIE-LAB	lab(48.60, -29.83, 47.29)
CIE-LCH	lch(48.60, 55.91, 122.24°)
OKLab	oklab(54.68% -0.0853 0.1043)
OKLCH	oklch(54.68% 0.135 129.3)
XYZ	xyz(11.6847, 17.2706, 3.5819)
Luminance	0.1727 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577F18 #40187F

analogous

#7F7418 #577F18 #247F18

triadic

#577F18 #18577F #7F1857

tetradic

#577F18 #187F74 #40187F #7F1824

square

#577F18 #187F74 #40187F #7F1824

split-complementary

#577F18 #18247F #74187F

monochromatic

#121A05 #344C0E #577F18 #7AB222 #9BD938

Accessibility & contrast

On white

4.71

#577F18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#577F18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #577F18

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577F18	#FFFFFF	#000000	##FFFFFF
##577F18	1.00	4.71	4.45	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#857500

Deuteranopia (green-blind)

#807323

Tritanopia (blue-blind)

#5A796C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #577f18;
/* rgb */ color: rgb(87, 127, 24);
/* oklch */ color: oklch(54.7% 0.135 129.3);

Tailwind

colors: {
  custom: {
    50: '#8aa45f',
    500: '#577f18',
    950: '#000000',
  },
}

SCSS

$custom: #577f18;
$custom-light: #8aa45f;
$custom-dark: #000000;

JSON

{
  "hex": "#577f18",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 24
  },
  "hsl": {
    "h": 83.301,
    "s": 68.212,
    "l": 29.608
  },
  "oklch": {
    "l": 0.54684,
    "c": 0.13479,
    "h": 129.3
  },
  "luminance": 0.17271
}

Semantic roles & 50–950 ramp

primary

#577F18

secondary

#6C3FB3

accent

#3DEB80

background

#F8FAF5

surface

#F0F4EA

border

#CBCEC6

text

#0C0F05

muted

#7D7F79

Preview Lab

Preview with #577F18

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

Preview Lab → · Contrast checker → · Palette generator →