#557A18#557A18

#557A18 is a mid, vivid yellow-green. Relative luminance 0.159; OKLCH L 53.2% C 0.129 H 128.8°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#557A18
RGB	rgb(85, 122, 24)
HSL	hsl(83, 67%, 29%)
HSV	hsv(83, 80%, 48%)
CMYK	cmyk(30.3%, 0%, 80.3%, 52.2%)
CIE-LAB	lab(46.86, -28.26, 45.63)
CIE-LCH	lch(46.86, 53.68, 121.77°)
OKLab	oklab(53.24% -0.081 0.1009)
OKLCH	oklch(53.24% 0.129 128.8)
XYZ	xyz(10.8707, 15.9160, 3.3633)
Luminance	0.1592 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557A18 #3D187A

analogous

#7A6E18 #557A18 #247A18

triadic

#557A18 #18557A #7A1855

tetradic

#557A18 #187A6E #3D187A #7A1824

square

#557A18 #187A6E #3D187A #7A1824

split-complementary

#557A18 #18247A #6E187A

monochromatic

#121A05 #31470E #557A18 #79AD22 #9AD735

Accessibility & contrast

On white

5.02

#557A18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#557A18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #557A18

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557A18	#FFFFFF	#000000	##FFFFFF
##557A18	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#807100

Deuteranopia (green-blind)

#7B6E22

Tritanopia (blue-blind)

#587468

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #557a18;
/* rgb */ color: rgb(85, 122, 24);
/* oklch */ color: oklch(53.2% 0.129 128.8);

Tailwind

colors: {
  custom: {
    50: '#89a05e',
    500: '#557a18',
    950: '#000000',
  },
}

SCSS

$custom: #557a18;
$custom-light: #89a05e;
$custom-dark: #000000;

JSON

{
  "hex": "#557a18",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 24
  },
  "hsl": {
    "h": 82.653,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.5324,
    "c": 0.12935,
    "h": 128.8
  },
  "luminance": 0.15916
}

Semantic roles & 50–950 ramp

primary

#557A18

secondary

#693FAF

accent

#3EEA7F

background

#F8F9F5

surface

#F0F2E9

border

#CBCCC5

text

#0C0E05

muted

#7D7E79

Preview Lab

Preview with #557A18

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

Preview Lab → · Contrast checker → · Palette generator →