#51A017#51A017

#51A017 is a light, vivid yellow-green. Relative luminance 0.270; OKLCH L 63.1% C 0.179 H 136.1°. Best body text is #000000 at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#51A017
RGB	rgb(81, 160, 23)
HSL	hsl(95, 75%, 36%)
HSV	hsv(95, 86%, 63%)
CMYK	cmyk(49.4%, 0%, 85.6%, 37.3%)
CIE-LAB	lab(58.93, -46.22, 56.80)
CIE-LCH	lch(58.93, 73.22, 129.13°)
OKLab	oklab(63.06% -0.129 0.1243)
OKLCH	oklch(63.06% 0.179 136.1)
XYZ	xyz(16.1184, 26.9517, 5.1633)
Luminance	0.2695 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A017 #6617A0

analogous

#95A017 #51A017 #17A022

triadic

#51A017 #1751A0 #A01751

tetradic

#51A017 #1795A0 #6617A0 #A02217

square

#51A017 #1795A0 #6617A0 #A02217

split-complementary

#51A017 #2217A0 #A01795

monochromatic

#1B3508 #366A0F #51A017 #6CD61F #8DE54C

Accessibility & contrast

On white

3.29

#51A017 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.39

#51A017 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A017

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A017	#FFFFFF	#000000	##000000
##51A017	1.00	3.29	6.39	6.39
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.39	21.00	1.00	1.00
##000000	6.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A69200

Deuteranopia (green-blind)

#9C8B29

Tritanopia (blue-blind)

#4D9A88

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #51a017;
/* rgb */ color: rgb(81, 160, 23);
/* oklch */ color: oklch(63.1% 0.179 136.1);

Tailwind

colors: {
  custom: {
    50: '#8abd63',
    500: '#51a017',
    950: '#000000',
  },
}

SCSS

$custom: #51a017;
$custom-light: #8abd63;
$custom-dark: #000000;

JSON

{
  "hex": "#51a017",
  "rgb": {
    "r": 81,
    "g": 160,
    "b": 23
  },
  "hsl": {
    "h": 94.599,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.63063,
    "c": 0.1792,
    "h": 136.1
  },
  "luminance": 0.26953
}

Semantic roles & 50–950 ramp

primary

#51A017

secondary

#934CC7

accent

#36F1A2

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0D1206

muted

#7D817A

Preview Lab

Preview with #51A017

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

Preview Lab → · Contrast checker → · Palette generator →