#557F21#557F21

#557F21 is a mid, vivid yellow-green. Relative luminance 0.172; OKLCH L 54.6% C 0.130 H 130.8°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#557F21
RGB	rgb(85, 127, 33)
HSL	hsl(87, 59%, 31%)
HSV	hsv(87, 74%, 50%)
CMYK	cmyk(33.1%, 0%, 74%, 50.2%)
CIE-LAB	lab(48.54, -30.08, 43.96)
CIE-LCH	lch(48.54, 53.27, 124.39°)
OKLab	oklab(54.62% -0.0852 0.0988)
OKLCH	oklch(54.62% 0.13 130.8)
XYZ	xyz(11.6101, 17.2195, 4.1505)
Luminance	0.1722 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557F21 #4B217F

analogous

#7F7A21 #557F21 #267F21

triadic

#557F21 #21557F #7F2155

tetradic

#557F21 #217F7A #4B217F #7F2126

square

#557F21 #217F7A #4B217F #7F2126

split-complementary

#557F21 #21267F #7A217F

monochromatic

#141E08 #344E14 #557F21 #76B02E #94D04A

Accessibility & contrast

On white

4.73

#557F21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#557F21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #557F21

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557F21	#FFFFFF	#000000	##FFFFFF
##557F21	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#857511

Deuteranopia (green-blind)

#7F722A

Tritanopia (blue-blind)

#57796D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #557f21;
/* rgb */ color: rgb(85, 127, 33);
/* oklch */ color: oklch(54.6% 0.130 130.8);

Tailwind

colors: {
  custom: {
    50: '#89a463',
    500: '#557f21',
    950: '#000000',
  },
}

SCSS

$custom: #557f21;
$custom-light: #89a463;
$custom-dark: #000000;

JSON

{
  "hex": "#557f21",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 33
  },
  "hsl": {
    "h": 86.809,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.54618,
    "c": 0.13049,
    "h": 130.8
  },
  "luminance": 0.1722
}

Semantic roles & 50–950 ramp

primary

#557F21

secondary

#784AB2

accent

#46E28C

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C0F05

muted

#7D7F7A

Preview Lab

Preview with #557F21

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

Preview Lab → · Contrast checker → · Palette generator →