#51E3F2#51E3F2

#51E3F2 is a very light, vivid teal. Relative luminance 0.631; OKLCH L 84.5% C 0.123 H 204.9°. Best body text is #000000 at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#51E3F2
RGB	rgb(81, 227, 242)
HSL	hsl(186, 86%, 63%)
HSV	hsv(186, 67%, 95%)
CMYK	cmyk(66.5%, 6.2%, 0%, 5.1%)
CIE-LAB	lab(83.49, -33.78, -18.69)
CIE-LCH	lch(83.49, 38.61, 208.96°)
OKLab	oklab(84.47% -0.1118 -0.0519)
OKLCH	oklch(84.47% 0.123 204.9)
XYZ	xyz(46.8825, 63.0930, 93.6945)
Luminance	0.6310 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E3F2 #F26051

analogous

#51F2B0 #51E3F2 #5192F2

triadic

#51E3F2 #F251E3 #E3F251

tetradic

#51E3F2 #B051F2 #F26051 #92F251

square

#51E3F2 #B051F2 #F26051 #92F251

split-complementary

#51E3F2 #F25192 #F2B051

monochromatic

#0EABBB #18DAEE #51E3F2 #8AECF6 #C3F5FB

Accessibility & contrast

On white

1.54

#51E3F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.62

#51E3F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E3F2

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E3F2	#FFFFFF	#000000	##000000
##51E3F2	1.00	1.54	13.62	13.62
#FFFFFF	1.54	1.00	21.00	21.00
#000000	13.62	21.00	1.00	1.00
##000000	13.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1DAF3

Deuteranopia (green-blind)

#BAC9F3

Tritanopia (blue-blind)

#00ECE7

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #51e3f2;
/* rgb */ color: rgb(81, 227, 242);
/* oklch */ color: oklch(84.5% 0.123 204.9);

Tailwind

colors: {
  custom: {
    50: '#95ecf6',
    500: '#51e3f2',
    950: '#000000',
  },
}

SCSS

$custom: #51e3f2;
$custom-light: #95ecf6;
$custom-dark: #000000;

JSON

{
  "hex": "#51e3f2",
  "rgb": {
    "r": 81,
    "g": 227,
    "b": 242
  },
  "hsl": {
    "h": 185.59,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.84472,
    "c": 0.12323,
    "h": 204.9
  },
  "luminance": 0.63098
}

Semantic roles & 50–950 ramp

primary

#51E3F2

secondary

#B93B2E

accent

#1803E3

background

#FCFEFF

surface

#F5FDFE

border

#CFD5D6

text

#0F1617

muted

#808485

Preview Lab

Preview with #51E3F2

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

Preview Lab → · Contrast checker → · Palette generator →