#51DCEE#51DCEE

#51DCEE is a very light, moderate teal. Relative luminance 0.591; OKLCH L 82.7% C 0.120 H 207.3°. Best body text is #000000 at 12.82:1 contrast (WCAG AA passes).

Color values

HEX	#51DCEE
RGB	rgb(81, 220, 238)
HSL	hsl(187, 82%, 63%)
HSV	hsv(187, 66%, 93%)
CMYK	cmyk(66%, 7.6%, 0%, 6.7%)
CIE-LAB	lab(81.35, -31.61, -19.81)
CIE-LCH	lch(81.35, 37.31, 212.08°)
OKLab	oklab(82.7% -0.1065 -0.055)
OKLCH	oklch(82.7% 0.12 207.3)
XYZ	xyz(44.4126, 59.1038, 89.9399)
Luminance	0.5911 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DCEE #EE6351

analogous

#51EEB2 #51DCEE #518DEE

triadic

#51DCEE #EE51DC #DCEE51

tetradic

#51DCEE #B251EE #EE6351 #8DEE51

square

#51DCEE #B251EE #EE6351 #8DEE51

split-complementary

#51DCEE #EE518D #EEB251

monochromatic

#11A1B3 #19D1E9 #51DCEE #89E7F3 #C1F2F9

Accessibility & contrast

On white

1.64

#51DCEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.82

#51DCEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DCEE

12.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DCEE	#FFFFFF	#000000	##000000
##51DCEE	1.00	1.64	12.82	12.82
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.82	21.00	1.00	1.00
##000000	12.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CAD4EF

Deuteranopia (green-blind)

#B3C3EE

Tritanopia (blue-blind)

#00E5E1

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51dcee;
/* rgb */ color: rgb(81, 220, 238);
/* oklch */ color: oklch(82.7% 0.120 207.3);

Tailwind

colors: {
  custom: {
    50: '#94e7f3',
    500: '#51dcee',
    950: '#000000',
  },
}

SCSS

$custom: #51dcee;
$custom-light: #94e7f3;
$custom-dark: #000000;

JSON

{
  "hex": "#51dcee",
  "rgb": {
    "r": 81,
    "g": 220,
    "b": 238
  },
  "hsl": {
    "h": 186.879,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.827,
    "c": 0.11986,
    "h": 207.3
  },
  "luminance": 0.59109
}

Semantic roles & 50–950 ramp

primary

#51DCEE

secondary

#B33F30

accent

#2007DF

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1617

muted

#808485

Preview Lab

Preview with #51DCEE

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

Preview Lab → · Contrast checker → · Palette generator →