#577B1B#577B1B

#577B1B is a mid, vivid yellow-green. Relative luminance 0.163; OKLCH L 53.7% C 0.128 H 128.4°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#577B1B
RGB	rgb(87, 123, 27)
HSL	hsl(83, 64%, 29%)
HSV	hsv(83, 78%, 48%)
CMYK	cmyk(29.3%, 0%, 78%, 51.8%)
CIE-LAB	lab(47.33, -27.75, 45.07)
CIE-LCH	lch(47.33, 52.93, 121.62°)
OKLab	oklab(53.65% -0.0795 0.1002)
OKLCH	oklch(53.65% 0.128 128.4)
XYZ	xyz(11.2113, 16.2710, 3.5866)
Luminance	0.1627 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B1B #3F1B7B

analogous

#7B6F1B #577B1B #277B1B

triadic

#577B1B #1B577B #7B1B57

tetradic

#577B1B #1B7B6F #3F1B7B #7B1B27

square

#577B1B #1B7B6F #3F1B7B #7B1B27

split-complementary

#577B1B #1B277B #6F1B7B

monochromatic

#121906 #344910 #577B1B #7AAD26 #9BD43C

Accessibility & contrast

On white

4.94

#577B1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#577B1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #577B1B

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B1B	#FFFFFF	#000000	##FFFFFF
##577B1B	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#817205

Deuteranopia (green-blind)

#7C6F24

Tritanopia (blue-blind)

#5A7569

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #577b1b;
/* rgb */ color: rgb(87, 123, 27);
/* oklch */ color: oklch(53.7% 0.128 128.4);

Tailwind

colors: {
  custom: {
    50: '#8aa15f',
    500: '#577b1b',
    950: '#000000',
  },
}

SCSS

$custom: #577b1b;
$custom-light: #8aa15f;
$custom-dark: #000000;

JSON

{
  "hex": "#577b1b",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 27
  },
  "hsl": {
    "h": 82.5,
    "s": 64,
    "l": 29.412
  },
  "oklch": {
    "l": 0.53655,
    "c": 0.12787,
    "h": 128.4
  },
  "luminance": 0.16271
}

Semantic roles & 50–950 ramp

primary

#577B1B

secondary

#6B43AF

accent

#41E77F

background

#F8F9F5

surface

#F0F2EA

border

#CBCCC6

text

#0C0F05

muted

#7D7E79

Preview Lab

Preview with #577B1B

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

Preview Lab → · Contrast checker → · Palette generator →