#558B21#558B21

#558B21 is a mid, vivid yellow-green. Relative luminance 0.205; OKLCH L 57.8% C 0.146 H 133.1°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#558B21
RGB	rgb(85, 139, 33)
HSL	hsl(91, 62%, 34%)
HSV	hsv(91, 76%, 55%)
CMYK	cmyk(38.8%, 0%, 76.3%, 45.5%)
CIE-LAB	lab(52.40, -35.57, 47.79)
CIE-LCH	lch(52.40, 59.57, 126.66°)
OKLab	oklab(57.78% -0.1001 0.1069)
OKLCH	oklch(57.78% 0.146 133.1)
XYZ	xyz(13.2532, 20.5057, 4.6982)
Luminance	0.2051 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558B21 #57218B

analogous

#8A8B21 #558B21 #218B22

triadic

#558B21 #21558B #8B2155

tetradic

#558B21 #218A8B #57218B #8B2221

square

#558B21 #218A8B #57218B #8B2221

split-complementary

#558B21 #22218B #8B218A

monochromatic

#19280A #375A15 #558B21 #73BC2D #92D651

Accessibility & contrast

On white

4.12

#558B21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#558B21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558B21

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558B21	#FFFFFF	#000000	##000000
##558B21	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91800B

Deuteranopia (green-blind)

#897B2C

Tritanopia (blue-blind)

#558577

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #558b21;
/* rgb */ color: rgb(85, 139, 33);
/* oklch */ color: oklch(57.8% 0.146 133.1);

Tailwind

colors: {
  custom: {
    50: '#8aad64',
    500: '#558b21',
    950: '#000000',
  },
}

SCSS

$custom: #558b21;
$custom-light: #8aad64;
$custom-dark: #000000;

JSON

{
  "hex": "#558b21",
  "rgb": {
    "r": 85,
    "g": 139,
    "b": 33
  },
  "hsl": {
    "h": 90.566,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.57776,
    "c": 0.14641,
    "h": 133.1
  },
  "luminance": 0.20506
}

Semantic roles & 50–950 ramp

primary

#558B21

secondary

#854FB9

accent

#43E595

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1006

muted

#7D7F7A

Preview Lab

Preview with #558B21

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

Preview Lab → · Contrast checker → · Palette generator →