#63B8FD#63B8FD

#63B8FD is a light, vivid cyan. Relative luminance 0.440; OKLCH L 75.8% C 0.130 H 245.2°. Best body text is #000000 at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#63B8FD
RGB	rgb(99, 184, 253)
HSL	hsl(207, 97%, 69%)
HSV	hsv(207, 61%, 99%)
CMYK	cmyk(60.9%, 27.3%, 0%, 0.8%)
CIE-LAB	lab(72.24, -5.63, -41.81)
CIE-LCH	lch(72.24, 42.19, 262.32°)
OKLab	oklab(75.77% -0.0544 -0.1177)
OKLCH	oklch(75.77% 0.13 245.2)
XYZ	xyz(40.0091, 44.0216, 99.2980)
Luminance	0.4402 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B8FD #FDA863

analogous

#63FDF5 #63B8FD #636BFD

triadic

#63B8FD #FD63B8 #B8FD63

tetradic

#63B8FD #F563FD #FDA863 #6BFD63

square

#63B8FD #F563FD #FDA863 #6BFD63

split-complementary

#63B8FD #FD636B #FDF563

monochromatic

#037EE3 #279DFC #63B8FD #9FD4FE #DCEFFF

Accessibility & contrast

On white

2.14

#63B8FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.80

#63B8FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B8FD

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B8FD	#FFFFFF	#000000	##000000
##63B8FD	1.00	2.14	9.80	9.80
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.80	21.00	1.00	1.00
##000000	9.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9ABAFF

Deuteranopia (green-blind)

#85AAFC

Tritanopia (blue-blind)

#00C9D0

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #63b8fd;
/* rgb */ color: rgb(99, 184, 253);
/* oklch */ color: oklch(75.8% 0.130 245.2);

Tailwind

colors: {
  custom: {
    50: '#9ccdfe',
    500: '#63b8fd',
    950: '#000000',
  },
}

SCSS

$custom: #63b8fd;
$custom-light: #9ccdfe;
$custom-dark: #000000;

JSON

{
  "hex": "#63b8fd",
  "rgb": {
    "r": 99,
    "g": 184,
    "b": 253
  },
  "hsl": {
    "h": 206.883,
    "s": 97.468,
    "l": 69.02
  },
  "oklch": {
    "l": 0.75769,
    "c": 0.12962,
    "h": 245.2
  },
  "luminance": 0.44025
}

Semantic roles & 50–950 ramp

primary

#63B8FD

secondary

#F4DCC7

accent

#6700E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1318

muted

#7F8286

Preview Lab

Preview with #63B8FD

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

Preview Lab → · Contrast checker → · Palette generator →