#51E551#51E551

#51E551 is a light, highly saturated green. Relative luminance 0.584; OKLCH L 81.4% C 0.227 H 143.1°. Best body text is #000000 at 12.68:1 contrast (WCAG AA passes).

Color values

HEX	#51E551
RGB	rgb(81, 229, 81)
HSL	hsl(120, 74%, 61%)
HSV	hsv(120, 65%, 90%)
CMYK	cmyk(64.6%, 0%, 64.6%, 10.2%)
CIE-LAB	lab(80.95, -66.83, 58.79)
CIE-LCH	lch(80.95, 89.01, 138.66°)
OKLab	oklab(81.36% -0.1815 0.1361)
OKLCH	oklch(81.36% 0.227 143.1)
XYZ	xyz(32.8959, 58.3787, 17.3176)
Luminance	0.5838 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E551 #E551E5

analogous

#9BE551 #51E551 #51E59B

triadic

#51E551 #5151E5 #E55151

tetradic

#51E551 #519BE5 #E551E5 #E59B51

square

#51E551 #519BE5 #E551E5 #E59B51

split-complementary

#51E551 #9B51E5 #E5519B

monochromatic

#18A318 #20D820 #51E551 #86ED86 #BBF5BB

Accessibility & contrast

On white

1.66

#51E551 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.68

#51E551 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E551

12.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E551	#FFFFFF	#000000	##000000
##51E551	1.00	1.66	12.68	12.68
#FFFFFF	1.66	1.00	21.00	21.00
#000000	12.68	21.00	1.00	1.00
##000000	12.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EAD03E

Deuteranopia (green-blind)

#D8C45E

Tritanopia (blue-blind)

#2FDFC6

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #51e551;
/* rgb */ color: rgb(81, 229, 81);
/* oklch */ color: oklch(81.4% 0.227 143.1);

Tailwind

colors: {
  custom: {
    50: '#93ee88',
    500: '#51e551',
    950: '#000000',
  },
}

SCSS

$custom: #51e551;
$custom-light: #93ee88;
$custom-dark: #000000;

JSON

{
  "hex": "#51e551",
  "rgb": {
    "r": 81,
    "g": 229,
    "b": 81
  },
  "hsl": {
    "h": 120,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.81361,
    "c": 0.22685,
    "h": 143.1
  },
  "luminance": 0.58382
}

Semantic roles & 50–950 ramp

primary

#51E551

secondary

#A635A6

accent

#0FD6D6

background

#FCFFFC

surface

#F5FEF4

border

#CFD6CE

text

#0E170C

muted

#7F857F

Preview Lab

Preview with #51E551

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

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