#557D18#557D18

#557D18 is a mid, vivid yellow-green. Relative luminance 0.167; OKLCH L 54.0% C 0.133 H 129.5°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#557D18
RGB	rgb(85, 125, 24)
HSL	hsl(84, 68%, 29%)
HSV	hsv(84, 81%, 49%)
CMYK	cmyk(32%, 0%, 80.8%, 51%)
CIE-LAB	lab(47.83, -29.69, 46.54)
CIE-LCH	lch(47.83, 55.20, 122.54°)
OKLab	oklab(54.03% -0.0848 0.1028)
OKLCH	oklch(54.03% 0.133 129.5)
XYZ	xyz(11.2448, 16.6641, 3.4880)
Luminance	0.1666 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557D18 #40187D

analogous

#7D7318 #557D18 #237D18

triadic

#557D18 #18557D #7D1855

tetradic

#557D18 #187D73 #40187D #7D1823

square

#557D18 #187D73 #40187D #7D1823

split-complementary

#557D18 #18237D #73187D

monochromatic

#111A05 #324A0E #557D18 #78B022 #99D937

Accessibility & contrast

On white

4.85

#557D18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#557D18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #557D18

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557D18	#FFFFFF	#000000	##FFFFFF
##557D18	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837300

Deuteranopia (green-blind)

#7E7123

Tritanopia (blue-blind)

#58776A

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #557d18;
/* rgb */ color: rgb(85, 125, 24);
/* oklch */ color: oklch(54.0% 0.133 129.5);

Tailwind

colors: {
  custom: {
    50: '#89a35e',
    500: '#557d18',
    950: '#000000',
  },
}

SCSS

$custom: #557d18;
$custom-light: #89a35e;
$custom-dark: #000000;

JSON

{
  "hex": "#557d18",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 24
  },
  "hsl": {
    "h": 83.762,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.54029,
    "c": 0.13328,
    "h": 129.5
  },
  "luminance": 0.16664
}

Semantic roles & 50–950 ramp

primary

#557D18

secondary

#6D3FB2

accent

#3DEB82

background

#F8FAF5

surface

#F0F3E9

border

#CBCDC5

text

#0C0F05

muted

#7D7F79

Preview Lab

Preview with #557D18

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

Preview Lab → · Contrast checker → · Palette generator →