#577B1F#577B1F

#577B1F is a mid, vivid yellow-green. Relative luminance 0.163; OKLCH L 53.7% C 0.125 H 128.8°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#577B1F
RGB	rgb(87, 123, 31)
HSL	hsl(83, 60%, 30%)
HSV	hsv(83, 75%, 48%)
CMYK	cmyk(29.3%, 0%, 74.8%, 51.8%)
CIE-LAB	lab(47.35, -27.50, 43.60)
CIE-LCH	lch(47.35, 51.55, 122.24°)
OKLab	oklab(53.68% -0.0785 0.0977)
OKLCH	oklch(53.68% 0.125 128.8)
XYZ	xyz(11.2607, 16.2908, 3.8472)
Luminance	0.1629 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B1F #431F7B

analogous

#7B711F #577B1F #297B1F

triadic

#577B1F #1F577B #7B1F57

tetradic

#577B1F #1F7B71 #431F7B #7B1F29

square

#577B1F #1F7B71 #431F7B #7B1F29

split-complementary

#577B1F #1F297B #711F7B

monochromatic

#121906 #344A13 #577B1F #7AAC2B #99D044

Accessibility & contrast

On white

4.93

#577B1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#577B1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #577B1F

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B1F	#FFFFFF	#000000	##FFFFFF
##577B1F	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)

#81720E

Deuteranopia (green-blind)

#7C7027

Tritanopia (blue-blind)

#5A7569

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #577b1f;
/* rgb */ color: rgb(87, 123, 31);
/* oklch */ color: oklch(53.7% 0.125 128.8);

Tailwind

colors: {
  custom: {
    50: '#8aa161',
    500: '#577b1f',
    950: '#000000',
  },
}

SCSS

$custom: #577b1f;
$custom-light: #8aa161;
$custom-dark: #000000;

JSON

{
  "hex": "#577b1f",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 31
  },
  "hsl": {
    "h": 83.478,
    "s": 59.74,
    "l": 30.196
  },
  "oklch": {
    "l": 0.53684,
    "c": 0.12535,
    "h": 128.8
  },
  "luminance": 0.16291
}

Semantic roles & 50–950 ramp

primary

#577B1F

secondary

#7048AE

accent

#45E383

background

#F8F9F6

surface

#F0F2EB

border

#CBCCC6

text

#0C0F05

muted

#7D7E7A

Preview Lab

Preview with #577B1F

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

Preview Lab → · Contrast checker → · Palette generator →