#63CAF9#63CAF9

#63CAF9 is a light, moderate cyan. Relative luminance 0.517; OKLCH L 79.6% C 0.116 H 230.4°. Best body text is #000000 at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#63CAF9
RGB	rgb(99, 202, 249)
HSL	hsl(199, 93%, 68%)
HSV	hsv(199, 60%, 98%)
CMYK	cmyk(60.2%, 18.9%, 0%, 2.4%)
CIE-LAB	lab(77.12, -16.47, -32.09)
CIE-LCH	lch(77.12, 36.07, 242.83°)
OKLab	oklab(79.58% -0.0742 -0.0896)
OKLCH	oklch(79.58% 0.116 230.4)
XYZ	xyz(43.3584, 51.7290, 97.3039)
Luminance	0.5173 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CAF9 #F99263

analogous

#63F9DD #63CAF9 #637FF9

triadic

#63CAF9 #F963CA #CAF963

tetradic

#63CAF9 #DD63F9 #F99263 #7FF963

square

#63CAF9 #DD63F9 #F99263 #7FF963

split-complementary

#63CAF9 #F9637F #F9DD63

monochromatic

#0898D9 #28B6F7 #63CAF9 #9EDEFB #D9F2FE

Accessibility & contrast

On white

1.85

#63CAF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.35

#63CAF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CAF9

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CAF9	#FFFFFF	#000000	##000000
##63CAF9	1.00	1.85	11.35	11.35
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.35	21.00	1.00	1.00
##000000	11.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2C7FB

Deuteranopia (green-blind)

#9DB8F8

Tritanopia (blue-blind)

#00D7D9

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #63caf9;
/* rgb */ color: rgb(99, 202, 249);
/* oklch */ color: oklch(79.6% 0.116 230.4);

Tailwind

colors: {
  custom: {
    50: '#9cdafb',
    500: '#63caf9',
    950: '#000000',
  },
}

SCSS

$custom: #63caf9;
$custom-light: #9cdafb;
$custom-dark: #000000;

JSON

{
  "hex": "#63caf9",
  "rgb": {
    "r": 99,
    "g": 202,
    "b": 249
  },
  "hsl": {
    "h": 198.8,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.79582,
    "c": 0.11637,
    "h": 230.4
  },
  "luminance": 0.51733
}

Semantic roles & 50–950 ramp

primary

#63CAF9

secondary

#D2612E

accent

#4800E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#0F1417

muted

#808385

Preview Lab

Preview with #63CAF9

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

Preview Lab → · Contrast checker → · Palette generator →