#63B3FA#63B3FA

#63B3FA is a light, vivid cyan. Relative luminance 0.418; OKLCH L 74.5% C 0.130 H 247.3°. Best body text is #000000 at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#63B3FA
RGB	rgb(99, 179, 250)
HSL	hsl(208, 94%, 68%)
HSV	hsv(208, 60%, 98%)
CMYK	cmyk(60.4%, 28.4%, 0%, 2%)
CIE-LAB	lab(70.73, -3.82, -42.56)
CIE-LCH	lch(70.73, 42.73, 264.86°)
OKLab	oklab(74.53% -0.0501 -0.1199)
OKLCH	oklch(74.53% 0.13 247.3)
XYZ	xyz(38.5147, 41.7913, 96.4608)
Luminance	0.4179 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B3FA #FAAA63

analogous

#63FAF6 #63B3FA #6367FA

triadic

#63B3FA #FA63B3 #B3FA63

tetradic

#63B3FA #F663FA #FAAA63 #67FA63

square

#63B3FA #F663FA #FAAA63 #67FA63

split-complementary

#63B3FA #FA6367 #FAF663

monochromatic

#0778DC #2896F8 #63B3FA #9ED0FC #DAEDFE

Accessibility & contrast

On white

2.24

#63B3FA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.36

#63B3FA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B3FA

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B3FA	#FFFFFF	#000000	##000000
##63B3FA	1.00	2.24	9.36	9.36
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.36	21.00	1.00	1.00
##000000	9.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94B5FD

Deuteranopia (green-blind)

#80A6F9

Tritanopia (blue-blind)

#00C4CC

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #63b3fa;
/* rgb */ color: rgb(99, 179, 250);
/* oklch */ color: oklch(74.5% 0.130 247.3);

Tailwind

colors: {
  custom: {
    50: '#9bc9fc',
    500: '#63b3fa',
    950: '#000000',
  },
}

SCSS

$custom: #63b3fa;
$custom-light: #9bc9fc;
$custom-dark: #000000;

JSON

{
  "hex": "#63b3fa",
  "rgb": {
    "r": 99,
    "g": 179,
    "b": 250
  },
  "hsl": {
    "h": 208.212,
    "s": 93.789,
    "l": 68.431
  },
  "oklch": {
    "l": 0.74531,
    "c": 0.12992,
    "h": 247.3
  },
  "luminance": 0.41795
}

Semantic roles & 50–950 ramp

primary

#63B3FA

secondary

#F3DBC6

accent

#6C00E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B3FA

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

Preview Lab → · Contrast checker → · Palette generator →