#51F17B#51F17B

#51F17B is a very light, highly saturated green. Relative luminance 0.661; OKLCH L 84.9% C 0.208 H 148.5°. Best body text is #000000 at 14.22:1 contrast (WCAG AA passes).

Color values

HEX	#51F17B
RGB	rgb(81, 241, 123)
HSL	hsl(136, 85%, 63%)
HSV	hsv(136, 66%, 95%)
CMYK	cmyk(66.4%, 0%, 49%, 5.5%)
CIE-LAB	lab(85.04, -65.82, 44.84)
CIE-LCH	lch(85.04, 79.64, 145.73°)
OKLab	oklab(84.89% -0.1774 0.1088)
OKLCH	oklch(84.89% 0.208 148.5)
XYZ	xyz(38.4209, 66.0859, 29.4661)
Luminance	0.6609 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51F17B #F151C7

analogous

#77F151 #51F17B #51F1CB

triadic

#51F17B #7B51F1 #F17B51

tetradic

#51F17B #5177F1 #F151C7 #F1CB51

square

#51F17B #5177F1 #F151C7 #F1CB51

split-complementary

#51F17B #CB51F1 #F15177

monochromatic

#0FB93B #18EC50 #51F17B #8AF6A6 #C2FAD1

Accessibility & contrast

On white

1.48

#51F17B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.22

#51F17B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51F17B

14.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51F17B	#FFFFFF	#000000	##000000
##51F17B	1.00	1.48	14.22	14.22
#FFFFFF	1.48	1.00	21.00	21.00
#000000	14.22	21.00	1.00	1.00
##000000	14.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F3DD71

Deuteranopia (green-blind)

#E0CF83

Tritanopia (blue-blind)

#01ECD5

Achromatopsia (no color)

#D4D4D4

Design tokens & code

CSS

--color: #51f17b;
/* rgb */ color: rgb(81, 241, 123);
/* oklch */ color: oklch(84.9% 0.208 148.5);

Tailwind

colors: {
  custom: {
    50: '#94f7a3',
    500: '#51f17b',
    950: '#000000',
  },
}

SCSS

$custom: #51f17b;
$custom-light: #94f7a3;
$custom-dark: #000000;

JSON

{
  "hex": "#51f17b",
  "rgb": {
    "r": 81,
    "g": 241,
    "b": 123
  },
  "hsl": {
    "h": 135.75,
    "s": 85.106,
    "l": 63.137
  },
  "oklch": {
    "l": 0.84885,
    "c": 0.20812,
    "h": 148.5
  },
  "luminance": 0.6609
}

Semantic roles & 50–950 ramp

primary

#51F17B

secondary

#B82F94

accent

#04A7E2

background

#FCFFFC

surface

#F5FFF6

border

#CFD7D0

text

#0F170F

muted

#808580

Preview Lab

Preview with #51F17B

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

Preview Lab → · Contrast checker → · Palette generator →