#63AAF9#63AAF9

#63AAF9 is a light, vivid cyan. Relative luminance 0.382; OKLCH L 72.5% C 0.136 H 252.4°. Best body text is #000000 at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#63AAF9
RGB	rgb(99, 170, 249)
HSL	hsl(212, 93%, 68%)
HSV	hsv(212, 60%, 98%)
CMYK	cmyk(60.2%, 31.7%, 0%, 2.4%)
CIE-LAB	lab(68.20, 0.89, -45.98)
CIE-LCH	lch(68.20, 45.99, 271.11°)
OKLab	oklab(72.53% -0.0411 -0.1299)
OKLCH	oklch(72.53% 0.136 252.4)
XYZ	xyz(36.6130, 38.2383, 95.0554)
Luminance	0.3824 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AAF9 #F9B263

analogous

#63F5F9 #63AAF9 #6763F9

triadic

#63AAF9 #F963AA #AAF963

tetradic

#63AAF9 #F963F5 #F9B263 #63F967

square

#63AAF9 #F963F5 #F9B263 #63F967

split-complementary

#63AAF9 #F96763 #F5F963

monochromatic

#086BD9 #288AF7 #63AAF9 #9ECAFB #D9EAFE

Accessibility & contrast

On white

2.43

#63AAF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.65

#63AAF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AAF9

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AAF9	#FFFFFF	#000000	##000000
##63AAF9	1.00	2.43	8.65	8.65
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.65	21.00	1.00	1.00
##000000	8.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#88AEFC

Deuteranopia (green-blind)

#74A0F7

Tritanopia (blue-blind)

#00BCC6

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #63aaf9;
/* rgb */ color: rgb(99, 170, 249);
/* oklch */ color: oklch(72.5% 0.136 252.4);

Tailwind

colors: {
  custom: {
    50: '#9bc3fb',
    500: '#63aaf9',
    950: '#000000',
  },
}

SCSS

$custom: #63aaf9;
$custom-light: #9bc3fb;
$custom-dark: #000000;

JSON

{
  "hex": "#63aaf9",
  "rgb": {
    "r": 99,
    "g": 170,
    "b": 249
  },
  "hsl": {
    "h": 211.6,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.72528,
    "c": 0.13625,
    "h": 252.4
  },
  "luminance": 0.38242
}

Semantic roles & 50–950 ramp

primary

#63AAF9

secondary

#F3DDC5

accent

#7900E6

background

#FAFBFF

surface

#F4F7FF

border

#CED0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63AAF9

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

Preview Lab → · Contrast checker → · Palette generator →