#51E490#51E490

#51E490 is a very light, vivid green. Relative luminance 0.593; OKLCH L 82.0% C 0.173 H 154.4°. Best body text is #000000 at 12.85:1 contrast (WCAG AA passes).

Color values

HEX	#51E490
RGB	rgb(81, 228, 144)
HSL	hsl(146, 73%, 61%)
HSV	hsv(146, 64%, 89%)
CMYK	cmyk(64.5%, 0%, 36.8%, 10.6%)
CIE-LAB	lab(81.43, -57.62, 29.80)
CIE-LCH	lch(81.43, 64.87, 152.66°)
OKLab	oklab(82.01% -0.1559 0.0746)
OKLCH	oklch(82.01% 0.173 154.4)
XYZ	xyz(36.1676, 59.2459, 35.9097)
Luminance	0.5925 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E490 #E451A5

analogous

#5CE451 #51E490 #51E4D9

triadic

#51E490 #9051E4 #E49051

tetradic

#51E490 #515CE4 #E451A5 #E4D951

square

#51E490 #515CE4 #E451A5 #E4D951

split-complementary

#51E490 #D951E4 #E4515C

monochromatic

#19A254 #21D76F #51E490 #86ECB2 #BBF4D4

Accessibility & contrast

On white

1.63

#51E490 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.85

#51E490 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E490

12.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E490	#FFFFFF	#000000	##000000
##51E490	1.00	1.63	12.85	12.85
#FFFFFF	1.63	1.00	21.00	21.00
#000000	12.85	21.00	1.00	1.00
##000000	12.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E4D28A

Deuteranopia (green-blind)

#D1C595

Tritanopia (blue-blind)

#00E2CF

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51e490;
/* rgb */ color: rgb(81, 228, 144);
/* oklch */ color: oklch(82.0% 0.173 154.4);

Tailwind

colors: {
  custom: {
    50: '#91edb1',
    500: '#51e490',
    950: '#000000',
  },
}

SCSS

$custom: #51e490;
$custom-light: #91edb1;
$custom-dark: #000000;

JSON

{
  "hex": "#51e490",
  "rgb": {
    "r": 81,
    "g": 228,
    "b": 144
  },
  "hsl": {
    "h": 145.714,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.82009,
    "c": 0.17284,
    "h": 154.4
  },
  "luminance": 0.5925
}

Semantic roles & 50–950 ramp

primary

#51E490

secondary

#A43575

accent

#1081D5

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1610

muted

#7F8581

Preview Lab

Preview with #51E490

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

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