#51E457#51E457

#51E457 is a light, highly saturated green. Relative luminance 0.579; OKLCH L 81.2% C 0.221 H 143.8°. Best body text is #000000 at 12.58:1 contrast (WCAG AA passes).

Color values

HEX	#51E457
RGB	rgb(81, 228, 87)
HSL	hsl(122, 73%, 61%)
HSV	hsv(122, 64%, 89%)
CMYK	cmyk(64.5%, 0%, 61.8%, 10.6%)
CIE-LAB	lab(80.69, -65.88, 56.02)
CIE-LCH	lch(80.69, 86.48, 139.63°)
OKLab	oklab(81.17% -0.1786 0.1308)
OKLCH	oklch(81.17% 0.221 143.8)
XYZ	xyz(32.8551, 57.9209, 18.4634)
Luminance	0.5792 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E457 #E451DE

analogous

#94E451 #51E457 #51E4A0

triadic

#51E457 #5751E4 #E45751

tetradic

#51E457 #5194E4 #E451DE #E4A051

square

#51E457 #5194E4 #E451DE #E4A051

split-complementary

#51E457 #A051E4 #E45194

monochromatic

#19A21F #21D729 #51E457 #86EC8A #BBF4BD

Accessibility & contrast

On white

1.67

#51E457 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.58

#51E457 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E457

12.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E457	#FFFFFF	#000000	##000000
##51E457	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)

#E8D047

Deuteranopia (green-blind)

#D7C463

Tritanopia (blue-blind)

#2DDEC6

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #51e457;
/* rgb */ color: rgb(81, 228, 87);
/* oklch */ color: oklch(81.2% 0.221 143.8);

Tailwind

colors: {
  custom: {
    50: '#92ee8b',
    500: '#51e457',
    950: '#000000',
  },
}

SCSS

$custom: #51e457;
$custom-light: #92ee8b;
$custom-dark: #000000;

JSON

{
  "hex": "#51e457",
  "rgb": {
    "r": 81,
    "g": 228,
    "b": 87
  },
  "hsl": {
    "h": 122.449,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.81167,
    "c": 0.22139,
    "h": 143.8
  },
  "luminance": 0.57924
}

Semantic roles & 50–950 ramp

primary

#51E457

secondary

#A435A0

accent

#10CDD5

background

#FCFFFC

surface

#F5FEF4

border

#CFD6CE

text

#0E160C

muted

#7F857F

Preview Lab

Preview with #51E457

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

Preview Lab → · Contrast checker → · Palette generator →