#577B21#577B21

#577B21 is a mid, vivid yellow-green. Relative luminance 0.163; OKLCH L 53.7% C 0.124 H 128.9°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#577B21
RGB	rgb(87, 123, 33)
HSL	hsl(84, 58%, 31%)
HSV	hsv(84, 73%, 48%)
CMYK	cmyk(29.3%, 0%, 73.2%, 51.8%)
CIE-LAB	lab(47.37, -27.37, 42.82)
CIE-LCH	lch(47.37, 50.82, 122.58°)
OKLab	oklab(53.7% -0.0779 0.0964)
OKLCH	oklch(53.7% 0.124 128.9)
XYZ	xyz(11.2879, 16.3017, 3.9904)
Luminance	0.1630 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B21 #45217B

analogous

#7B7221 #577B21 #2A7B21

triadic

#577B21 #21577B #7B2157

tetradic

#577B21 #217B72 #45217B #7B212A

square

#577B21 #217B72 #45217B #7B212A

split-complementary

#577B21 #212A7B #72217B

monochromatic

#131A07 #354B14 #577B21 #79AB2E #99CE48

Accessibility & contrast

On white

4.93

#577B21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#577B21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #577B21

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B21	#FFFFFF	#000000	##FFFFFF
##577B21	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#817212

Deuteranopia (green-blind)

#7C7029

Tritanopia (blue-blind)

#5A7569

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #577b21;
/* rgb */ color: rgb(87, 123, 33);
/* oklch */ color: oklch(53.7% 0.124 128.9);

Tailwind

colors: {
  custom: {
    50: '#8aa162',
    500: '#577b21',
    950: '#000000',
  },
}

SCSS

$custom: #577b21;
$custom-light: #8aa162;
$custom-dark: #000000;

JSON

{
  "hex": "#577b21",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 33
  },
  "hsl": {
    "h": 84,
    "s": 57.692,
    "l": 30.588
  },
  "oklch": {
    "l": 0.537,
    "c": 0.12398,
    "h": 128.9
  },
  "luminance": 0.16302
}

Semantic roles & 50–950 ramp

primary

#577B21

secondary

#724AAE

accent

#47E184

background

#F8F9F6

surface

#F0F2EB

border

#CBCCC6

text

#0C0F05

muted

#7D7E7A

Preview Lab

Preview with #577B21

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

Preview Lab → · Contrast checker → · Palette generator →