#51CA63#51CA63

#51CA63 is a light, vivid green. Relative luminance 0.449; OKLCH L 74.7% C 0.179 H 146.3°. Best body text is #000000 at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#51CA63
RGB	rgb(81, 202, 99)
HSL	hsl(129, 53%, 55%)
HSV	hsv(129, 60%, 79%)
CMYK	cmyk(59.9%, 0%, 51%, 20.8%)
CIE-LAB	lab(72.82, -55.11, 41.26)
CIE-LCH	lch(72.82, 68.85, 143.18°)
OKLab	oklab(74.71% -0.1491 0.0996)
OKLCH	oklch(74.71% 0.179 146.3)
XYZ	xyz(26.7643, 44.8887, 19.0559)
Luminance	0.4489 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CA63 #CA51B8

analogous

#7BCA51 #51CA63 #51CAA0

triadic

#51CA63 #6351CA #CA6351

tetradic

#51CA63 #517BCA #CA51B8 #CAA051

square

#51CA63 #517BCA #CA51B8 #CAA051

split-complementary

#51CA63 #A051CA #CA517B

monochromatic

#257B32 #34AA45 #51CA63 #80D88D #AFE7B7

Accessibility & contrast

On white

2.10

#51CA63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.98

#51CA63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CA63

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CA63	#FFFFFF	#000000	##000000
##51CA63	1.00	2.10	9.98	9.98
#FFFFFF	2.10	1.00	21.00	21.00
#000000	9.98	21.00	1.00	1.00
##000000	9.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDB95A

Deuteranopia (green-blind)

#BDAF6A

Tritanopia (blue-blind)

#35C6B2

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #51ca63;
/* rgb */ color: rgb(81, 202, 99);
/* oklch */ color: oklch(74.7% 0.179 146.3);

Tailwind

colors: {
  custom: {
    50: '#8ddb91',
    500: '#51ca63',
    950: '#000000',
  },
}

SCSS

$custom: #51ca63;
$custom-light: #8ddb91;
$custom-dark: #000000;

JSON

{
  "hex": "#51ca63",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 99
  },
  "hsl": {
    "h": 128.926,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.74708,
    "c": 0.17928,
    "h": 146.3
  },
  "luminance": 0.44891
}

Semantic roles & 50–950 ramp

primary

#51CA63

secondary

#D5A2CD

accent

#4BC7DD

background

#F9FDF9

surface

#F2FBF1

border

#CCD4CB

text

#0D150D

muted

#7E837E

Preview Lab

Preview with #51CA63

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

Preview Lab → · Contrast checker → · Palette generator →