#51AA1D#51AA1D

#51AA1D is a light, vivid yellow-green. Relative luminance 0.306; OKLCH L 65.7% C 0.189 H 137.2°. Best body text is #000000 at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#51AA1D
RGB	rgb(81, 170, 29)
HSL	hsl(98, 71%, 39%)
HSV	hsv(98, 83%, 67%)
CMYK	cmyk(52.4%, 0%, 82.9%, 33.3%)
CIE-LAB	lab(62.16, -49.81, 58.15)
CIE-LCH	lch(62.16, 76.56, 130.58°)
OKLab	oklab(65.73% -0.1384 0.1281)
OKLCH	oklch(65.73% 0.189 137.2)
XYZ	xyz(17.9893, 30.5861, 6.1179)
Luminance	0.3059 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AA1D #761DAA

analogous

#98AA1D #51AA1D #1DAA2F

triadic

#51AA1D #1D51AA #AA1D51

tetradic

#51AA1D #1D98AA #761DAA #AA2F1D

square

#51AA1D #1D98AA #761DAA #AA2F1D

split-complementary

#51AA1D #2F1DAA #AA1D98

monochromatic

#1F410B #387614 #51AA1D #6BDB2A #8FE45E

Accessibility & contrast

On white

2.95

#51AA1D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.12

#51AA1D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AA1D

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AA1D	#FFFFFF	#000000	##000000
##51AA1D	1.00	2.95	7.12	7.12
#FFFFFF	2.95	1.00	21.00	21.00
#000000	7.12	21.00	1.00	1.00
##000000	7.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B09B00

Deuteranopia (green-blind)

#A4942F

Tritanopia (blue-blind)

#4BA491

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #51aa1d;
/* rgb */ color: rgb(81, 170, 29);
/* oklch */ color: oklch(65.7% 0.189 137.2);

Tailwind

colors: {
  custom: {
    50: '#8bc467',
    500: '#51aa1d',
    950: '#000000',
  },
}

SCSS

$custom: #51aa1d;
$custom-light: #8bc467;
$custom-dark: #000000;

JSON

{
  "hex": "#51aa1d",
  "rgb": {
    "r": 81,
    "g": 170,
    "b": 29
  },
  "hsl": {
    "h": 97.872,
    "s": 70.854,
    "l": 39.02
  },
  "oklch": {
    "l": 0.65729,
    "c": 0.18853,
    "h": 137.2
  },
  "luminance": 0.30587
}

Semantic roles & 50–950 ramp

primary

#51AA1D

secondary

#A05BC8

accent

#3AEEAB

background

#F9FCF6

surface

#F1F8EB

border

#CBD1C6

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #51AA1D

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

Preview Lab → · Contrast checker → · Palette generator →