#51EC9B#51EC9B

#51EC9B is a very light, vivid green. Relative luminance 0.641; OKLCH L 84.2% C 0.174 H 156.3°. Best body text is #000000 at 13.82:1 contrast (WCAG AA passes).

Color values

HEX	#51EC9B
RGB	rgb(81, 236, 155)
HSL	hsl(149, 80%, 62%)
HSV	hsv(149, 66%, 93%)
CMYK	cmyk(65.7%, 0%, 34.3%, 7.5%)
CIE-LAB	lab(84.02, -58.62, 27.67)
CIE-LCH	lch(84.02, 64.82, 154.73°)
OKLab	oklab(84.2% -0.1589 0.0696)
OKLCH	oklch(84.2% 0.174 156.3)
XYZ	xyz(39.3016, 64.1026, 41.3058)
Luminance	0.6411 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EC9B #EC51A2

analogous

#55EC51 #51EC9B #51ECE8

triadic

#51EC9B #9B51EC #EC9B51

tetradic

#51EC9B #5155EC #EC51A2 #ECE851

square

#51EC9B #5155EC #EC51A2 #ECE851

split-complementary

#51EC9B #E851EC #EC5155

monochromatic

#13AF5E #1AE67B #51EC9B #88F2BB #BFF8DA

Accessibility & contrast

On white

1.52

#51EC9B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.82

#51EC9B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EC9B

13.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EC9B	#FFFFFF	#000000	##000000
##51EC9B	1.00	1.52	13.82	13.82
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.82	21.00	1.00	1.00
##000000	13.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EBDA96

Deuteranopia (green-blind)

#D7CCA0

Tritanopia (blue-blind)

#00EAD7

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #51ec9b;
/* rgb */ color: rgb(81, 236, 155);
/* oklch */ color: oklch(84.2% 0.174 156.3);

Tailwind

colors: {
  custom: {
    50: '#92f3b9',
    500: '#51ec9b',
    950: '#000000',
  },
}

SCSS

$custom: #51ec9b;
$custom-light: #92f3b9;
$custom-dark: #000000;

JSON

{
  "hex": "#51ec9b",
  "rgb": {
    "r": 81,
    "g": 236,
    "b": 155
  },
  "hsl": {
    "h": 148.645,
    "s": 80.311,
    "l": 62.157
  },
  "oklch": {
    "l": 0.84202,
    "c": 0.17352,
    "h": 156.3
  },
  "luminance": 0.64107
}

Semantic roles & 50–950 ramp

primary

#51EC9B

secondary

#B03173

accent

#0978DD

background

#FCFFFD

surface

#F5FEF8

border

#CFD6D1

text

#0E1711

muted

#7F8581

Preview Lab

Preview with #51EC9B

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

Preview Lab → · Contrast checker → · Palette generator →