#577B23#577B23

#577B23 is a mid, vivid yellow-green. Relative luminance 0.163; OKLCH L 53.7% C 0.123 H 129.1°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#577B23
RGB	rgb(87, 123, 35)
HSL	hsl(85, 56%, 31%)
HSV	hsv(85, 72%, 48%)
CMYK	cmyk(29.3%, 0%, 71.5%, 51.8%)
CIE-LAB	lab(47.38, -27.22, 42.02)
CIE-LCH	lch(47.38, 50.06, 122.94°)
OKLab	oklab(53.72% -0.0774 0.095)
OKLCH	oklch(53.72% 0.123 129.1)
XYZ	xyz(11.3168, 16.3132, 4.1423)
Luminance	0.1631 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B23 #47237B

analogous

#7B7323 #577B23 #2B7B23

triadic

#577B23 #23577B #7B2357

tetradic

#577B23 #237B73 #47237B #7B232B

square

#577B23 #237B73 #47237B #7B232B

split-complementary

#577B23 #232B7B #73237B

monochromatic

#141C08 #354B15 #577B23 #79AB31 #98CC4C

Accessibility & contrast

On white

4.93

#577B23 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#577B23 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #577B23

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B23	#FFFFFF	#000000	##FFFFFF
##577B23	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)

#817216

Deuteranopia (green-blind)

#7C702B

Tritanopia (blue-blind)

#5A7569

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #577b23;
/* rgb */ color: rgb(87, 123, 35);
/* oklch */ color: oklch(53.7% 0.123 129.1);

Tailwind

colors: {
  custom: {
    50: '#89a163',
    500: '#577b23',
    950: '#000000',
  },
}

SCSS

$custom: #577b23;
$custom-light: #89a163;
$custom-dark: #000000;

JSON

{
  "hex": "#577b23",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 35
  },
  "hsl": {
    "h": 84.545,
    "s": 55.696,
    "l": 30.98
  },
  "oklch": {
    "l": 0.53717,
    "c": 0.12254,
    "h": 129.1
  },
  "luminance": 0.16314
}

Semantic roles & 50–950 ramp

primary

#577B23

secondary

#744CAE

accent

#49DF86

background

#F8F9F6

surface

#F0F2EB

border

#CBCCC6

text

#0C0F06

muted

#7D7E7A

Preview Lab

Preview with #577B23

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

Preview Lab → · Contrast checker → · Palette generator →