#51DDEE#51DDEE

#51DDEE is a very light, vivid teal. Relative luminance 0.596; OKLCH L 82.9% C 0.120 H 206.6°. Best body text is #000000 at 12.93:1 contrast (WCAG AA passes).

Color values

HEX	#51DDEE
RGB	rgb(81, 221, 238)
HSL	hsl(186, 82%, 63%)
HSV	hsv(186, 66%, 93%)
CMYK	cmyk(66%, 7.1%, 0%, 6.7%)
CIE-LAB	lab(81.64, -32.09, -19.38)
CIE-LCH	lch(81.64, 37.49, 211.13°)
OKLab	oklab(82.93% -0.1075 -0.0538)
OKLCH	oklch(82.93% 0.12 206.6)
XYZ	xyz(44.6758, 59.6303, 90.0276)
Luminance	0.5964 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DDEE #EE6251

analogous

#51EEB1 #51DDEE #518EEE

triadic

#51DDEE #EE51DD #DDEE51

tetradic

#51DDEE #B151EE #EE6251 #8EEE51

square

#51DDEE #B151EE #EE6251 #8EEE51

split-complementary

#51DDEE #EE518E #EEB151

monochromatic

#11A2B3 #19D2E9 #51DDEE #89E8F3 #C1F3F9

Accessibility & contrast

On white

1.62

#51DDEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.93

#51DDEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DDEE

12.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DDEE	#FFFFFF	#000000	##000000
##51DDEE	1.00	1.62	12.93	12.93
#FFFFFF	1.62	1.00	21.00	21.00
#000000	12.93	21.00	1.00	1.00
##000000	12.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBD5EF

Deuteranopia (green-blind)

#B4C4EE

Tritanopia (blue-blind)

#00E6E2

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #51ddee;
/* rgb */ color: rgb(81, 221, 238);
/* oklch */ color: oklch(82.9% 0.120 206.6);

Tailwind

colors: {
  custom: {
    50: '#94e8f3',
    500: '#51ddee',
    950: '#000000',
  },
}

SCSS

$custom: #51ddee;
$custom-light: #94e8f3;
$custom-dark: #000000;

JSON

{
  "hex": "#51ddee",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 238
  },
  "hsl": {
    "h": 186.497,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.82933,
    "c": 0.12019,
    "h": 206.6
  },
  "luminance": 0.59635
}

Semantic roles & 50–950 ramp

primary

#51DDEE

secondary

#B33E30

accent

#1E07DF

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1617

muted

#808485

Preview Lab

Preview with #51DDEE

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

Preview Lab → · Contrast checker → · Palette generator →