#63AEEF#63AEEF

#63AEEF is a light, vivid cyan. Relative luminance 0.392; OKLCH L 72.9% C 0.121 H 246.6°. Best body text is #000000 at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#63AEEF
RGB	rgb(99, 174, 239)
HSL	hsl(208, 81%, 66%)
HSV	hsv(208, 59%, 94%)
CMYK	cmyk(58.6%, 27.2%, 0%, 6.3%)
CIE-LAB	lab(68.86, -4.51, -39.50)
CIE-LCH	lch(68.86, 39.75, 263.49°)
OKLab	oklab(72.91% -0.0481 -0.111)
OKLCH	oklch(72.91% 0.121 246.6)
XYZ	xyz(35.8559, 39.1535, 87.3124)
Luminance	0.3916 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AEEF #EFA463

analogous

#63EFEA #63AEEF #6368EF

triadic

#63AEEF #EF63AE #AEEF63

tetradic

#63AEEF #EA63EF #EFA463 #68EF63

square

#63AEEF #EA63EF #EFA463 #68EF63

split-complementary

#63AEEF #EF6368 #EFEA63

monochromatic

#1472C4 #2B91E9 #63AEEF #9BCBF5 #D2E8FA

Accessibility & contrast

On white

2.38

#63AEEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.83

#63AEEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AEEF

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AEEF	#FFFFFF	#000000	##000000
##63AEEF	1.00	2.38	8.83	8.83
#FFFFFF	2.38	1.00	21.00	21.00
#000000	8.83	21.00	1.00	1.00
##000000	8.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92B0F2

Deuteranopia (green-blind)

#7FA2EE

Tritanopia (blue-blind)

#00BDC5

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #63aeef;
/* rgb */ color: rgb(99, 174, 239);
/* oklch */ color: oklch(72.9% 0.121 246.6);

Tailwind

colors: {
  custom: {
    50: '#9ac6f4',
    500: '#63aeef',
    950: '#000000',
  },
}

SCSS

$custom: #63aeef;
$custom-light: #9ac6f4;
$custom-dark: #000000;

JSON

{
  "hex": "#63aeef",
  "rgb": {
    "r": 99,
    "g": 174,
    "b": 239
  },
  "hsl": {
    "h": 207.857,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.72906,
    "c": 0.12104,
    "h": 246.6
  },
  "luminance": 0.39157
}

Semantic roles & 50–950 ramp

primary

#63AEEF

secondary

#EED5C0

accent

#6B08DE

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63AEEF

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

Preview Lab → · Contrast checker → · Palette generator →