#51D259#51D259

#51D259 is a light, vivid green. Relative luminance 0.486; OKLCH L 76.6% C 0.198 H 144.3°. Best body text is #000000 at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#51D259
RGB	rgb(81, 210, 89)
HSL	hsl(124, 59%, 57%)
HSV	hsv(124, 61%, 82%)
CMYK	cmyk(61.4%, 0%, 57.6%, 17.6%)
CIE-LAB	lab(75.18, -59.36, 48.81)
CIE-LCH	lch(75.18, 76.85, 140.57°)
OKLab	oklab(76.61% -0.1609 0.1155)
OKLCH	oklch(76.61% 0.198 144.3)
XYZ	xyz(28.2414, 48.5611, 17.3342)
Luminance	0.4856 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D259 #D251CA

analogous

#8AD251 #51D259 #51D29A

triadic

#51D259 #5951D2 #D25951

tetradic

#51D259 #518AD2 #D251CA #D29A51

square

#51D259 #518AD2 #D251CA #D29A51

split-complementary

#51D259 #9A51D2 #D2518A

monochromatic

#238629 #2FB738 #51D259 #82DF87 #B2EBB6

Accessibility & contrast

On white

1.96

#51D259 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.71

#51D259 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D259

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D259	#FFFFFF	#000000	##000000
##51D259	1.00	1.96	10.71	10.71
#FFFFFF	1.96	1.00	21.00	21.00
#000000	10.71	21.00	1.00	1.00
##000000	10.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6C04D

Deuteranopia (green-blind)

#C6B563

Tritanopia (blue-blind)

#35CDB7

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #51d259;
/* rgb */ color: rgb(81, 210, 89);
/* oklch */ color: oklch(76.6% 0.198 144.3);

Tailwind

colors: {
  custom: {
    50: '#8fe18b',
    500: '#51d259',
    950: '#000000',
  },
}

SCSS

$custom: #51d259;
$custom-light: #8fe18b;
$custom-dark: #000000;

JSON

{
  "hex": "#51d259",
  "rgb": {
    "r": 81,
    "g": 210,
    "b": 89
  },
  "hsl": {
    "h": 123.721,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.76615,
    "c": 0.19804,
    "h": 144.3
  },
  "luminance": 0.48564
}

Semantic roles & 50–950 ramp

primary

#51D259

secondary

#DAA5D6

accent

#46D8E2

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0E150C

muted

#7E837D

Preview Lab

Preview with #51D259

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

Preview Lab → · Contrast checker → · Palette generator →