#51E8FC#51E8FC

#51E8FC is a very light, vivid teal. Relative luminance 0.665; OKLCH L 86.0% C 0.127 H 207.7°. Best body text is #000000 at 14.30:1 contrast (WCAG AA passes).

Color values

HEX	#51E8FC
RGB	rgb(81, 232, 252)
HSL	hsl(187, 97%, 65%)
HSV	hsv(187, 68%, 99%)
CMYK	cmyk(67.9%, 7.9%, 0%, 1.2%)
CIE-LAB	lab(85.24, -33.27, -21.32)
CIE-LCH	lch(85.24, 39.51, 212.65°)
OKLab	oklab(85.99% -0.1126 -0.0592)
OKLCH	oklch(85.99% 0.127 207.7)
XYZ	xyz(49.8131, 66.4851, 102.2842)
Luminance	0.6649 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E8FC #FC6551

analogous

#51FCBB #51E8FC #5192FC

triadic

#51E8FC #FC51E8 #E8FC51

tetradic

#51E8FC #BB51FC #FC6551 #92FC51

square

#51E8FC #BB51FC #FC6551 #92FC51

split-complementary

#51E8FC #FC5192 #FCBB51

monochromatic

#04B7CF #15E0FB #51E8FC #8DF0FD #C9F8FE

Accessibility & contrast

On white

1.47

#51E8FC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.30

#51E8FC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E8FC

14.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E8FC	#FFFFFF	#000000	##000000
##51E8FC	1.00	1.47	14.30	14.30
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.30	21.00	1.00	1.00
##000000	14.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5DFFD

Deuteranopia (green-blind)

#BCCDFC

Tritanopia (blue-blind)

#00F2EE

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #51e8fc;
/* rgb */ color: rgb(81, 232, 252);
/* oklch */ color: oklch(86.0% 0.127 207.7);

Tailwind

colors: {
  custom: {
    50: '#97effd',
    500: '#51e8fc',
    950: '#000000',
  },
}

SCSS

$custom: #51e8fc;
$custom-light: #97effd;
$custom-dark: #000000;

JSON

{
  "hex": "#51e8fc",
  "rgb": {
    "r": 81,
    "g": 232,
    "b": 252
  },
  "hsl": {
    "h": 187.018,
    "s": 96.61,
    "l": 65.294
  },
  "oklch": {
    "l": 0.85992,
    "c": 0.12726,
    "h": 207.7
  },
  "luminance": 0.66491
}

Semantic roles & 50–950 ramp

primary

#51E8FC

secondary

#CA3A27

accent

#1B00E6

background

#FCFFFF

surface

#F6FEFF

border

#D0D6D7

text

#0F1617

muted

#808585

Preview Lab

Preview with #51E8FC

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

Preview Lab → · Contrast checker → · Palette generator →