#51B136#51B136

#51B136 is a light, vivid green. Relative luminance 0.335; OKLCH L 67.7% C 0.183 H 139.6°. Best body text is #000000 at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#51B136
RGB	rgb(81, 177, 54)
HSL	hsl(107, 53%, 45%)
HSV	hsv(107, 69%, 69%)
CMYK	cmyk(54.2%, 0%, 69.5%, 30.6%)
CIE-LAB	lab(64.53, -50.81, 52.03)
CIE-LCH	lch(64.53, 72.73, 134.32°)
OKLab	oklab(67.73% -0.1396 0.1188)
OKLCH	oklch(67.73% 0.183 139.6)
XYZ	xyz(19.7805, 33.4584, 8.9051)
Luminance	0.3346 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B136 #9636B1

analogous

#8FB136 #51B136 #36B158

triadic

#51B136 #3651B1 #B13651

tetradic

#51B136 #368FB1 #9636B1 #B15836

square

#51B136 #368FB1 #9636B1 #B15836

split-complementary

#51B136 #5836B1 #B1368F

monochromatic

#265319 #3C8228 #51B136 #72CC58 #99DA87

Accessibility & contrast

On white

2.73

#51B136 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.69

#51B136 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B136

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B136	#FFFFFF	#000000	##000000
##51B136	1.00	2.73	7.69	7.69
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.69	21.00	1.00	1.00
##000000	7.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A124

Deuteranopia (green-blind)

#AA9941

Tritanopia (blue-blind)

#47AB98

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #51b136;
/* rgb */ color: rgb(81, 177, 54);
/* oklch */ color: oklch(67.7% 0.183 139.6);

Tailwind

colors: {
  custom: {
    50: '#8bc974',
    500: '#51b136',
    950: '#000000',
  },
}

SCSS

$custom: #51b136;
$custom-light: #8bc974;
$custom-dark: #000000;

JSON

{
  "hex": "#51b136",
  "rgb": {
    "r": 81,
    "g": 177,
    "b": 54
  },
  "hsl": {
    "h": 106.829,
    "s": 53.247,
    "l": 45.294
  },
  "oklch": {
    "l": 0.67732,
    "c": 0.18327,
    "h": 139.6
  },
  "luminance": 0.3346
}

Semantic roles & 50–950 ramp

primary

#51B136

secondary

#B57FC4

accent

#4BDDBD

background

#F9FCF7

surface

#F1F8ED

border

#CBD1C8

text

#0D1309

muted

#7E827B

Preview Lab

Preview with #51B136

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

Preview Lab → · Contrast checker → · Palette generator →