#51E990#51E990

#51E990 is a very light, vivid green. Relative luminance 0.620; OKLCH L 83.2% C 0.179 H 153.8°. Best body text is #000000 at 13.41:1 contrast (WCAG AA passes).

Color values

HEX	#51E990
RGB	rgb(81, 233, 144)
HSL	hsl(145, 78%, 62%)
HSV	hsv(145, 65%, 91%)
CMYK	cmyk(65.2%, 0%, 38.2%, 8.6%)
CIE-LAB	lab(82.93, -59.51, 31.80)
CIE-LCH	lch(82.93, 67.47, 151.88°)
OKLab	oklab(83.25% -0.1609 0.0793)
OKLCH	oklch(83.25% 0.179 153.8)
XYZ	xyz(37.5631, 62.0368, 36.3748)
Luminance	0.6204 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E990 #E951AA

analogous

#5EE951 #51E990 #51E9DC

triadic

#51E990 #9051E9 #E99051

tetradic

#51E990 #515EE9 #E951AA #E9DC51

square

#51E990 #515EE9 #E951AA #E9DC51

split-complementary

#51E990 #DC51E9 #E9515E

monochromatic

#16AA53 #1CE06E #51E990 #87F0B3 #BEF7D5

Accessibility & contrast

On white

1.57

#51E990 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.41

#51E990 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E990

13.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E990	#FFFFFF	#000000	##000000
##51E990	1.00	1.57	13.41	13.41
#FFFFFF	1.57	1.00	21.00	21.00
#000000	13.41	21.00	1.00	1.00
##000000	13.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D78A

Deuteranopia (green-blind)

#D5C996

Tritanopia (blue-blind)

#00E6D3

Achromatopsia (no color)

#CECECE

Design tokens & code

CSS

--color: #51e990;
/* rgb */ color: rgb(81, 233, 144);
/* oklch */ color: oklch(83.2% 0.179 153.8);

Tailwind

colors: {
  custom: {
    50: '#92f1b1',
    500: '#51e990',
    950: '#000000',
  },
}

SCSS

$custom: #51e990;
$custom-light: #92f1b1;
$custom-dark: #000000;

JSON

{
  "hex": "#51e990",
  "rgb": {
    "r": 81,
    "g": 233,
    "b": 144
  },
  "hsl": {
    "h": 144.868,
    "s": 77.551,
    "l": 61.569
  },
  "oklch": {
    "l": 0.83248,
    "c": 0.17937,
    "h": 153.8
  },
  "luminance": 0.62041
}

Semantic roles & 50–950 ramp

primary

#51E990

secondary

#AB3379

accent

#0C84DA

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1711

muted

#7F8581

Preview Lab

Preview with #51E990

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

Preview Lab → · Contrast checker → · Palette generator →