#51C255#51C255

#51C255 is a light, vivid green. Relative luminance 0.410; OKLCH L 72.5% C 0.181 H 144.0°. Best body text is #000000 at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#51C255
RGB	rgb(81, 194, 85)
HSL	hsl(122, 48%, 54%)
HSV	hsv(122, 58%, 76%)
CMYK	cmyk(58.2%, 0%, 56.2%, 23.9%)
CIE-LAB	lab(70.17, -53.96, 44.76)
CIE-LCH	lch(70.17, 70.11, 140.33°)
OKLab	oklab(72.47% -0.1465 0.1064)
OKLCH	oklch(72.47% 0.181 144)
XYZ	xyz(24.3234, 40.9866, 15.2220)
Luminance	0.4099 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C255 #C251BE

analogous

#86C251 #51C255 #51C28E

triadic

#51C255 #5551C2 #C25551

tetradic

#51C255 #5186C2 #C251BE #C28E51

square

#51C255 #5186C2 #C251BE #C28E51

split-complementary

#51C255 #8E51C2 #C25186

monochromatic

#28712A #379E3B #51C255 #7ED281 #ACE2AE

Accessibility & contrast

On white

2.28

#51C255 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.20

#51C255 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C255

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C255	#FFFFFF	#000000	##000000
##51C255	1.00	2.28	9.20	9.20
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.20	21.00	1.00	1.00
##000000	9.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6B24A

Deuteranopia (green-blind)

#B7A85D

Tritanopia (blue-blind)

#3CBDAA

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #51c255;
/* rgb */ color: rgb(81, 194, 85);
/* oklch */ color: oklch(72.5% 0.181 144.0);

Tailwind

colors: {
  custom: {
    50: '#8dd588',
    500: '#51c255',
    950: '#000000',
  },
}

SCSS

$custom: #51c255;
$custom-light: #8dd588;
$custom-dark: #000000;

JSON

{
  "hex": "#51c255",
  "rgb": {
    "r": 81,
    "g": 194,
    "b": 85
  },
  "hsl": {
    "h": 122.124,
    "s": 48.085,
    "l": 53.922
  },
  "oklch": {
    "l": 0.72469,
    "c": 0.18101,
    "h": 144
  },
  "luminance": 0.40989
}

Semantic roles & 50–950 ramp

primary

#51C255

secondary

#D09FCE

accent

#50D3D8

background

#F9FDF8

surface

#F1FAF0

border

#CBD3CB

text

#0D140B

muted

#7E837C

Preview Lab

Preview with #51C255

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

Preview Lab → · Contrast checker → · Palette generator →