#51D55B#51D55B

#51D55B is a light, highly saturated green. Relative luminance 0.501; OKLCH L 77.4% C 0.200 H 144.6°. Best body text is #000000 at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#51D55B
RGB	rgb(81, 213, 91)
HSL	hsl(125, 61%, 58%)
HSV	hsv(125, 62%, 84%)
CMYK	cmyk(62%, 0%, 57.3%, 16.5%)
CIE-LAB	lab(76.12, -60.20, 49.01)
CIE-LCH	lch(76.12, 77.62, 140.85°)
OKLab	oklab(77.4% -0.1631 0.116)
OKLCH	oklch(77.4% 0.2 144.6)
XYZ	xyz(29.0741, 50.0903, 18.0317)
Luminance	0.5009 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D55B #D551CB

analogous

#89D551 #51D55B #51D59D

triadic

#51D55B #5B51D5 #D55B51

tetradic

#51D55B #5189D5 #D551CB #D59D51

square

#51D55B #5189D5 #D551CB #D59D51

split-complementary

#51D55B #9D51D5 #D55189

monochromatic

#218A29 #2DBC38 #51D55B #82E189 #B4EDB8

Accessibility & contrast

On white

1.91

#51D55B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.02

#51D55B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D55B

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D55B	#FFFFFF	#000000	##000000
##51D55B	1.00	1.91	11.02	11.02
#FFFFFF	1.91	1.00	21.00	21.00
#000000	11.02	21.00	1.00	1.00
##000000	11.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C34F

Deuteranopia (green-blind)

#C8B765

Tritanopia (blue-blind)

#33D0BA

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #51d55b;
/* rgb */ color: rgb(81, 213, 91);
/* oklch */ color: oklch(77.4% 0.200 144.6);

Tailwind

colors: {
  custom: {
    50: '#90e38d',
    500: '#51d55b',
    950: '#000000',
  },
}

SCSS

$custom: #51d55b;
$custom-light: #90e38d;
$custom-dark: #000000;

JSON

{
  "hex": "#51d55b",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 91
  },
  "hsl": {
    "h": 124.545,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.77404,
    "c": 0.20015,
    "h": 144.6
  },
  "luminance": 0.50093
}

Semantic roles & 50–950 ramp

primary

#51D55B

secondary

#903A8A

accent

#44D8E4

background

#FCFEFC

surface

#F5FCF4

border

#CFD5CE

text

#0E160C

muted

#7F847F

Preview Lab

Preview with #51D55B

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

Preview Lab → · Contrast checker → · Palette generator →