#63AAEE#63AAEE

#63AAEE is a light, vivid cyan. Relative luminance 0.376; OKLCH L 72.0% C 0.123 H 248.9°. Best body text is #000000 at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#63AAEE
RGB	rgb(99, 170, 238)
HSL	hsl(209, 80%, 66%)
HSV	hsv(209, 58%, 93%)
CMYK	cmyk(58.4%, 28.6%, 0%, 6.7%)
CIE-LAB	lab(67.70, -2.59, -40.76)
CIE-LCH	lch(67.70, 40.84, 266.36°)
OKLab	oklab(71.98% -0.0442 -0.1147)
OKLCH	oklch(71.98% 0.123 248.9)
XYZ	xyz(34.9473, 37.5720, 86.2828)
Luminance	0.3757 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AAEE #EEA763

analogous

#63EEED #63AAEE #6364EE

triadic

#63AAEE #EE63AA #AAEE63

tetradic

#63AAEE #ED63EE #EEA763 #64EE63

square

#63AAEE #ED63EE #EEA763 #64EE63

split-complementary

#63AAEE #EE6364 #EEED63

monochromatic

#156DC2 #2C8CE8 #63AAEE #9AC8F4 #D1E6FA

Accessibility & contrast

On white

2.47

#63AAEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.51

#63AAEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AAEE

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AAEE	#FFFFFF	#000000	##000000
##63AAEE	1.00	2.47	8.51	8.51
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.51	21.00	1.00	1.00
##000000	8.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DACF1

Deuteranopia (green-blind)

#7B9FED

Tritanopia (blue-blind)

#00BAC2

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #63aaee;
/* rgb */ color: rgb(99, 170, 238);
/* oklch */ color: oklch(72.0% 0.123 248.9);

Tailwind

colors: {
  custom: {
    50: '#9ac3f4',
    500: '#63aaee',
    950: '#000000',
  },
}

SCSS

$custom: #63aaee;
$custom-light: #9ac3f4;
$custom-dark: #000000;

JSON

{
  "hex": "#63aaee",
  "rgb": {
    "r": 99,
    "g": 170,
    "b": 238
  },
  "hsl": {
    "h": 209.353,
    "s": 80.347,
    "l": 66.078
  },
  "oklch": {
    "l": 0.7198,
    "c": 0.12295,
    "h": 248.9
  },
  "luminance": 0.37575
}

Semantic roles & 50–950 ramp

primary

#63AAEE

secondary

#EDD6C0

accent

#7009DD

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63AAEE

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

Preview Lab → · Contrast checker → · Palette generator →