#51E455#51E455

#51E455 is a light, highly saturated green. Relative luminance 0.579; OKLCH L 81.1% C 0.223 H 143.6°. Best body text is #000000 at 12.58:1 contrast (WCAG AA passes).

Color values

HEX	#51E455
RGB	rgb(81, 228, 85)
HSL	hsl(122, 73%, 61%)
HSV	hsv(122, 64%, 89%)
CMYK	cmyk(64.5%, 0%, 62.7%, 10.6%)
CIE-LAB	lab(80.68, -66.09, 56.84)
CIE-LCH	lch(80.68, 87.17, 139.30°)
OKLab	oklab(81.15% -0.1793 0.1324)
OKLCH	oklch(81.15% 0.223 143.6)
XYZ	xyz(32.7745, 57.8887, 18.0390)
Luminance	0.5789 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E455 #E451E0

analogous

#96E451 #51E455 #51E49F

triadic

#51E455 #5551E4 #E45551

tetradic

#51E455 #5196E4 #E451E0 #E49F51

square

#51E455 #5196E4 #E451E0 #E49F51

split-complementary

#51E455 #9F51E4 #E45196

monochromatic

#19A21D #21D726 #51E455 #86EC89 #BBF4BD

Accessibility & contrast

On white

1.67

#51E455 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.58

#51E455 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E455

12.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E455	#FFFFFF	#000000	##000000
##51E455	1.00	1.67	12.58	12.58
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.58	21.00	1.00	1.00
##000000	12.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E8D044

Deuteranopia (green-blind)

#D7C461

Tritanopia (blue-blind)

#2EDEC6

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #51e455;
/* rgb */ color: rgb(81, 228, 85);
/* oklch */ color: oklch(81.1% 0.223 143.6);

Tailwind

colors: {
  custom: {
    50: '#93ee8a',
    500: '#51e455',
    950: '#000000',
  },
}

SCSS

$custom: #51e455;
$custom-light: #93ee8a;
$custom-dark: #000000;

JSON

{
  "hex": "#51e455",
  "rgb": {
    "r": 81,
    "g": 228,
    "b": 85
  },
  "hsl": {
    "h": 121.633,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.81147,
    "c": 0.22286,
    "h": 143.6
  },
  "luminance": 0.57892
}

Semantic roles & 50–950 ramp

primary

#51E455

secondary

#A435A1

accent

#10D0D5

background

#FCFFFC

surface

#F5FEF4

border

#CFD6CE

text

#0E160C

muted

#7F857F

Preview Lab

Preview with #51E455

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

Preview Lab → · Contrast checker → · Palette generator →