#51DDF0#51DDF0

#51DDF0 is a very light, vivid teal. Relative luminance 0.598; OKLCH L 83.0% C 0.121 H 207.9°. Best body text is #000000 at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#51DDF0
RGB	rgb(81, 221, 240)
HSL	hsl(187, 84%, 63%)
HSV	hsv(187, 66%, 94%)
CMYK	cmyk(66.3%, 7.9%, 0%, 5.9%)
CIE-LAB	lab(81.70, -31.51, -20.34)
CIE-LCH	lch(81.70, 37.51, 212.84°)
OKLab	oklab(83.01% -0.1067 -0.0565)
OKLCH	oklch(83.01% 0.121 207.9)
XYZ	xyz(44.9713, 59.7485, 91.5837)
Luminance	0.5975 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DDF0 #F06451

analogous

#51F0B4 #51DDF0 #518DF0

triadic

#51DDF0 #F051DD #DDF051

tetradic

#51DDF0 #B451F0 #F06451 #8DF051

square

#51DDF0 #B451F0 #F06451 #8DF051

split-complementary

#51DDF0 #F0518D #F0B451

monochromatic

#10A3B7 #19D2EB #51DDF0 #89E8F5 #C2F3FA

Accessibility & contrast

On white

1.62

#51DDF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.95

#51DDF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DDF0

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DDF0	#FFFFFF	#000000	##000000
##51DDF0	1.00	1.62	12.95	12.95
#FFFFFF	1.62	1.00	21.00	21.00
#000000	12.95	21.00	1.00	1.00
##000000	12.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBD5F1

Deuteranopia (green-blind)

#B4C4F0

Tritanopia (blue-blind)

#00E6E3

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #51ddf0;
/* rgb */ color: rgb(81, 221, 240);
/* oklch */ color: oklch(83.0% 0.121 207.9);

Tailwind

colors: {
  custom: {
    50: '#94e8f5',
    500: '#51ddf0',
    950: '#000000',
  },
}

SCSS

$custom: #51ddf0;
$custom-light: #94e8f5;
$custom-dark: #000000;

JSON

{
  "hex": "#51ddf0",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 240
  },
  "hsl": {
    "h": 187.17,
    "s": 84.127,
    "l": 62.941
  },
  "oklch": {
    "l": 0.83006,
    "c": 0.12071,
    "h": 207.9
  },
  "luminance": 0.59754
}

Semantic roles & 50–950 ramp

primary

#51DDF0

secondary

#B63F2F

accent

#1F05E1

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1617

muted

#808485

Preview Lab

Preview with #51DDF0

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

Preview Lab → · Contrast checker → · Palette generator →