#51A019#51A019

#51A019 is a light, vivid yellow-green. Relative luminance 0.270; OKLCH L 63.1% C 0.178 H 136.2°. Best body text is #000000 at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#51A019
RGB	rgb(81, 160, 25)
HSL	hsl(95, 73%, 36%)
HSV	hsv(95, 84%, 63%)
CMYK	cmyk(49.4%, 0%, 84.4%, 37.3%)
CIE-LAB	lab(58.94, -46.13, 56.30)
CIE-LCH	lch(58.94, 72.79, 129.33°)
OKLab	oklab(63.07% -0.1287 0.1236)
OKLCH	oklch(63.07% 0.178 136.2)
XYZ	xyz(16.1392, 26.9600, 5.2729)
Luminance	0.2696 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A019 #6819A0

analogous

#95A019 #51A019 #19A025

triadic

#51A019 #1951A0 #A01951

tetradic

#51A019 #1995A0 #6819A0 #A02519

square

#51A019 #1995A0 #6819A0 #A02519

split-complementary

#51A019 #2519A0 #A01995

monochromatic

#1B3608 #366B11 #51A019 #6CD521 #8DE450

Accessibility & contrast

On white

3.29

#51A019 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.39

#51A019 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A019

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A019	#FFFFFF	#000000	##000000
##51A019	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)

#9C8B2A

Tritanopia (blue-blind)

#4D9A88

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #51a019;
/* rgb */ color: rgb(81, 160, 25);
/* oklch */ color: oklch(63.1% 0.178 136.2);

Tailwind

colors: {
  custom: {
    50: '#8abd64',
    500: '#51a019',
    950: '#000000',
  },
}

SCSS

$custom: #51a019;
$custom-light: #8abd64;
$custom-dark: #000000;

JSON

{
  "hex": "#51a019",
  "rgb": {
    "r": 81,
    "g": 160,
    "b": 25
  },
  "hsl": {
    "h": 95.111,
    "s": 72.973,
    "l": 36.275
  },
  "oklch": {
    "l": 0.63072,
    "c": 0.17844,
    "h": 136.2
  },
  "luminance": 0.26961
}

Semantic roles & 50–950 ramp

primary

#51A019

secondary

#954FC6

accent

#38F0A4

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0D1206

muted

#7D817A

Preview Lab

Preview with #51A019

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

Preview Lab → · Contrast checker → · Palette generator →