#557C18#557C18

#557C18 is a mid, vivid yellow-green. Relative luminance 0.164; OKLCH L 53.8% C 0.132 H 129.3°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#557C18
RGB	rgb(85, 124, 24)
HSL	hsl(83, 68%, 29%)
HSV	hsv(83, 81%, 49%)
CMYK	cmyk(31.5%, 0%, 80.6%, 51.4%)
CIE-LAB	lab(47.51, -29.22, 46.24)
CIE-LCH	lch(47.51, 54.70, 122.29°)
OKLab	oklab(53.77% -0.0836 0.1022)
OKLCH	oklch(53.77% 0.132 129.3)
XYZ	xyz(11.1188, 16.4122, 3.4460)
Luminance	0.1641 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557C18 #3F187C

analogous

#7C7118 #557C18 #237C18

triadic

#557C18 #18557C #7C1855

tetradic

#557C18 #187C71 #3F187C #7C1823

square

#557C18 #187C71 #3F187C #7C1823

split-complementary

#557C18 #18237C #71187C

monochromatic

#121A05 #32490E #557C18 #78AF22 #99D836

Accessibility & contrast

On white

4.90

#557C18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#557C18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #557C18

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557C18	#FFFFFF	#000000	##FFFFFF
##557C18	1.00	4.90	4.28	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#827200

Deuteranopia (green-blind)

#7D7023

Tritanopia (blue-blind)

#587669

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #557c18;
/* rgb */ color: rgb(85, 124, 24);
/* oklch */ color: oklch(53.8% 0.132 129.3);

Tailwind

colors: {
  custom: {
    50: '#89a25e',
    500: '#557c18',
    950: '#000000',
  },
}

SCSS

$custom: #557c18;
$custom-light: #89a25e;
$custom-dark: #000000;

JSON

{
  "hex": "#557c18",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 24
  },
  "hsl": {
    "h": 83.4,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.53766,
    "c": 0.13198,
    "h": 129.3
  },
  "luminance": 0.16413
}

Semantic roles & 50–950 ramp

primary

#557C18

secondary

#6B3FB1

accent

#3DEA81

background

#F8FAF5

surface

#F0F3E9

border

#CBCDC5

text

#0C0F05

muted

#7D7F79

Preview Lab

Preview with #557C18

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

Preview Lab → · Contrast checker → · Palette generator →