#51E499#51E499

#51E499 is a very light, vivid green. Relative luminance 0.595; OKLCH L 82.2% C 0.165 H 157.1°. Best body text is #000000 at 12.91:1 contrast (WCAG AA passes).

Color values

HEX	#51E499
RGB	rgb(81, 228, 153)
HSL	hsl(149, 73%, 61%)
HSV	hsv(149, 64%, 89%)
CMYK	cmyk(64.5%, 0%, 32.9%, 10.6%)
CIE-LAB	lab(81.58, -55.92, 25.39)
CIE-LCH	lch(81.58, 61.41, 155.58°)
OKLab	oklab(82.19% -0.1519 0.0641)
OKLCH	oklch(82.19% 0.165 157.1)
XYZ	xyz(36.8831, 59.5321, 39.6779)
Luminance	0.5954 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E499 #E4519C

analogous

#52E451 #51E499 #51E4E3

triadic

#51E499 #9951E4 #E49951

tetradic

#51E499 #5152E4 #E4519C #E4E351

square

#51E499 #5152E4 #E4519C #E4E351

split-complementary

#51E499 #E351E4 #E45152

monochromatic

#19A25C #21D77A #51E499 #86ECB8 #BBF4D7

Accessibility & contrast

On white

1.63

#51E499 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.91

#51E499 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E499

12.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E499	#FFFFFF	#000000	##000000
##51E499	1.00	1.63	12.91	12.91
#FFFFFF	1.63	1.00	21.00	21.00
#000000	12.91	21.00	1.00	1.00
##000000	12.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2D394

Deuteranopia (green-blind)

#CFC59E

Tritanopia (blue-blind)

#00E2D0

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #51e499;
/* rgb */ color: rgb(81, 228, 153);
/* oklch */ color: oklch(82.2% 0.165 157.1);

Tailwind

colors: {
  custom: {
    50: '#91edb7',
    500: '#51e499',
    950: '#000000',
  },
}

SCSS

$custom: #51e499;
$custom-light: #91edb7;
$custom-dark: #000000;

JSON

{
  "hex": "#51e499",
  "rgb": {
    "r": 81,
    "g": 228,
    "b": 153
  },
  "hsl": {
    "h": 149.388,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.82189,
    "c": 0.16487,
    "h": 157.1
  },
  "luminance": 0.59536
}

Semantic roles & 50–950 ramp

primary

#51E499

secondary

#A4356E

accent

#1075D5

background

#FCFFFD

surface

#F5FEF8

border

#CFD6D1

text

#0E1611

muted

#7F8581

Preview Lab

Preview with #51E499

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

Preview Lab → · Contrast checker → · Palette generator →