#577B40#577B40

#577B40 is a mid, moderate yellow-green. Relative luminance 0.166; OKLCH L 54.1% C 0.095 H 134.3°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#577B40
RGB	rgb(87, 123, 64)
HSL	hsl(97, 32%, 37%)
HSV	hsv(97, 48%, 48%)
CMYK	cmyk(29.3%, 0%, 48%, 51.8%)
CIE-LAB	lab(47.70, -24.18, 28.15)
CIE-LCH	lch(47.70, 37.11, 130.66°)
OKLab	oklab(54.08% -0.0666 0.0682)
OKLCH	oklch(54.08% 0.095 134.3)
XYZ	xyz(11.9386, 16.5619, 7.4173)
Luminance	0.1656 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B40 #64407B

analogous

#757B40 #577B40 #407B47

triadic

#577B40 #40577B #7B4057

tetradic

#577B40 #40757B #64407B #7B4740

square

#577B40 #40757B #64407B #7B4740

split-complementary

#577B40 #47407B #7B4075

monochromatic

#1E2A16 #3B532B #577B40 #73A355 #94BA7B

Accessibility & contrast

On white

4.87

#577B40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#577B40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #577B40

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B40	#FFFFFF	#000000	##FFFFFF
##577B40	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F733B

Deuteranopia (green-blind)

#7A7044

Tritanopia (blue-blind)

#57776D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #577b40;
/* rgb */ color: rgb(87, 123, 64);
/* oklch */ color: oklch(54.1% 0.095 134.3);

Tailwind

colors: {
  custom: {
    50: '#88a176',
    500: '#577b40',
    950: '#000000',
  },
}

SCSS

$custom: #577b40;
$custom-light: #88a176;
$custom-dark: #000000;

JSON

{
  "hex": "#577b40",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 64
  },
  "hsl": {
    "h": 96.61,
    "s": 31.551,
    "l": 36.667
  },
  "oklch": {
    "l": 0.54081,
    "c": 0.09529,
    "h": 134.3
  },
  "luminance": 0.16562
}

Semantic roles & 50–950 ramp

primary

#577B40

secondary

#9172A5

accent

#60C89F

background

#F8F9F7

surface

#F0F2ED

border

#CBCCC8

text

#0B0F08

muted

#7C7E7B

Preview Lab

Preview with #577B40

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

Preview Lab → · Contrast checker → · Palette generator →