#51DAEE#51DAEE

#51DAEE is a very light, moderate teal. Relative luminance 0.581; OKLCH L 82.2% C 0.119 H 208.8°. Best body text is #000000 at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#51DAEE
RGB	rgb(81, 218, 238)
HSL	hsl(188, 82%, 63%)
HSV	hsv(188, 66%, 93%)
CMYK	cmyk(66%, 8.4%, 0%, 6.7%)
CIE-LAB	lab(80.77, -30.65, -20.69)
CIE-LCH	lch(80.77, 36.98, 214.01°)
OKLab	oklab(82.24% -0.1045 -0.0574)
OKLCH	oklch(82.24% 0.119 208.8)
XYZ	xyz(43.8908, 58.0603, 89.7660)
Luminance	0.5806 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DAEE #EE6551

analogous

#51EEB3 #51DAEE #518CEE

triadic

#51DAEE #EE51DA #DAEE51

tetradic

#51DAEE #B351EE #EE6551 #8CEE51

square

#51DAEE #B351EE #EE6551 #8CEE51

split-complementary

#51DAEE #EE518C #EEB351

monochromatic

#119FB3 #19CEE9 #51DAEE #89E6F3 #C1F2F9

Accessibility & contrast

On white

1.66

#51DAEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.61

#51DAEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DAEE

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DAEE	#FFFFFF	#000000	##000000
##51DAEE	1.00	1.66	12.61	12.61
#FFFFFF	1.66	1.00	21.00	21.00
#000000	12.61	21.00	1.00	1.00
##000000	12.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8D2EF

Deuteranopia (green-blind)

#B1C1EE

Tritanopia (blue-blind)

#00E4E0

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #51daee;
/* rgb */ color: rgb(81, 218, 238);
/* oklch */ color: oklch(82.2% 0.119 208.8);

Tailwind

colors: {
  custom: {
    50: '#94e5f3',
    500: '#51daee',
    950: '#000000',
  },
}

SCSS

$custom: #51daee;
$custom-light: #94e5f3;
$custom-dark: #000000;

JSON

{
  "hex": "#51daee",
  "rgb": {
    "r": 81,
    "g": 218,
    "b": 238
  },
  "hsl": {
    "h": 187.643,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.82236,
    "c": 0.11927,
    "h": 208.8
  },
  "luminance": 0.58065
}

Semantic roles & 50–950 ramp

primary

#51DAEE

secondary

#B34130

accent

#2207DF

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1617

muted

#808485

Preview Lab

Preview with #51DAEE

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

Preview Lab → · Contrast checker → · Palette generator →