#63B3F4#63B3F4

#63B3F4 is a light, vivid cyan. Relative luminance 0.414; OKLCH L 74.2% C 0.123 H 245.1°. Best body text is #000000 at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#63B3F4
RGB	rgb(99, 179, 244)
HSL	hsl(207, 87%, 67%)
HSV	hsv(207, 59%, 96%)
CMYK	cmyk(59.4%, 26.6%, 0%, 4.3%)
CIE-LAB	lab(70.47, -5.71, -39.71)
CIE-LCH	lch(70.47, 40.11, 261.82°)
OKLab	oklab(74.24% -0.0519 -0.1116)
OKLCH	oklch(74.24% 0.123 245.1)
XYZ	xyz(37.5888, 41.4210, 91.5846)
Luminance	0.4143 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B3F4 #F4A463

analogous

#63F4ED #63B3F4 #636AF4

triadic

#63B3F4 #F463B3 #B3F463

tetradic

#63B3F4 #ED63F4 #F4A463 #6AF463

square

#63B3F4 #ED63F4 #F4A463 #6AF463

split-complementary

#63B3F4 #F4636A #F4ED63

monochromatic

#0F78CE #2A97F0 #63B3F4 #9CCFF8 #D5EBFC

Accessibility & contrast

On white

2.26

#63B3F4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.29

#63B3F4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B3F4

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B3F4	#FFFFFF	#000000	##000000
##63B3F4	1.00	2.26	9.29	9.29
#FFFFFF	2.26	1.00	21.00	21.00
#000000	9.29	21.00	1.00	1.00
##000000	9.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97B4F7

Deuteranopia (green-blind)

#83A6F3

Tritanopia (blue-blind)

#00C3C9

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #63b3f4;
/* rgb */ color: rgb(99, 179, 244);
/* oklch */ color: oklch(74.2% 0.123 245.1);

Tailwind

colors: {
  custom: {
    50: '#9bc9f8',
    500: '#63b3f4',
    950: '#000000',
  },
}

SCSS

$custom: #63b3f4;
$custom-light: #9bc9f8;
$custom-dark: #000000;

JSON

{
  "hex": "#63b3f4",
  "rgb": {
    "r": 99,
    "g": 179,
    "b": 244
  },
  "hsl": {
    "h": 206.897,
    "s": 86.826,
    "l": 67.255
  },
  "oklch": {
    "l": 0.74244,
    "c": 0.1231,
    "h": 245.1
  },
  "luminance": 0.41425
}

Semantic roles & 50–950 ramp

primary

#63B3F4

secondary

#F0D7C3

accent

#6702E3

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B3F4

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

Preview Lab → · Contrast checker → · Palette generator →