#517D21#517D21

#517D21 is a mid, vivid yellow-green. Relative luminance 0.165; OKLCH L 53.8% C 0.130 H 131.8°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#517D21
RGB	rgb(81, 125, 33)
HSL	hsl(89, 58%, 31%)
HSV	hsv(89, 74%, 49%)
CMYK	cmyk(35.2%, 0%, 73.6%, 51%)
CIE-LAB	lab(47.66, -30.71, 43.00)
CIE-LCH	lch(47.66, 52.84, 125.54°)
OKLab	oklab(53.84% -0.0866 0.0969)
OKLCH	oklch(53.84% 0.13 131.8)
XYZ	xyz(11.0013, 16.5259, 4.0487)
Luminance	0.1653 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517D21 #4D217D

analogous

#7D7B21 #517D21 #237D21

triadic

#517D21 #21517D #7D2151

tetradic

#517D21 #217D7B #4D217D #7D2123

square

#517D21 #217D7B #4D217D #7D2123

split-complementary

#517D21 #21237D #7B217D

monochromatic

#121C07 #324D14 #517D21 #70AD2E #8FCF49

Accessibility & contrast

On white

4.88

#517D21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#517D21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #517D21

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517D21	#FFFFFF	#000000	##FFFFFF
##517D21	1.00	4.88	4.31	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837311

Deuteranopia (green-blind)

#7C7029

Tritanopia (blue-blind)

#52786B

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #517d21;
/* rgb */ color: rgb(81, 125, 33);
/* oklch */ color: oklch(53.8% 0.130 131.8);

Tailwind

colors: {
  custom: {
    50: '#86a363',
    500: '#517d21',
    950: '#000000',
  },
}

SCSS

$custom: #517d21;
$custom-light: #86a363;
$custom-dark: #000000;

JSON

{
  "hex": "#517d21",
  "rgb": {
    "r": 81,
    "g": 125,
    "b": 33
  },
  "hsl": {
    "h": 88.696,
    "s": 58.228,
    "l": 30.98
  },
  "oklch": {
    "l": 0.53841,
    "c": 0.13,
    "h": 131.8
  },
  "luminance": 0.16526
}

Semantic roles & 50–950 ramp

primary

#517D21

secondary

#7B4AB0

accent

#46E191

background

#F8FAF6

surface

#F0F3EB

border

#CBCDC6

text

#0B0F05

muted

#7C7F7A

Preview Lab

Preview with #517D21

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

Preview Lab → · Contrast checker → · Palette generator →