#63A8F3#63A8F3

#63A8F3 is a light, vivid cyan. Relative luminance 0.371; OKLCH L 71.8% C 0.131 H 251.9°. Best body text is #000000 at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#63A8F3
RGB	rgb(99, 168, 243)
HSL	hsl(211, 86%, 67%)
HSV	hsv(211, 59%, 95%)
CMYK	cmyk(59.3%, 30.9%, 0%, 4.7%)
CIE-LAB	lab(67.37, 0.11, -44.01)
CIE-LCH	lch(67.37, 44.01, 270.15°)
OKLab	oklab(71.79% -0.0407 -0.1242)
OKLCH	oklch(71.79% 0.131 251.9)
XYZ	xyz(35.3200, 37.1258, 90.0813)
Luminance	0.3713 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A8F3 #F3AE63

analogous

#63F0F3 #63A8F3 #6663F3

triadic

#63A8F3 #F363A8 #A8F363

tetradic

#63A8F3 #F363F0 #F3AE63 #63F366

square

#63A8F3 #F363F0 #F3AE63 #63F366

split-complementary

#63A8F3 #F36663 #F0F363

monochromatic

#106ACC #2A88EF #63A8F3 #9CC8F7 #D5E7FC

Accessibility & contrast

On white

2.49

#63A8F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.43

#63A8F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A8F3

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A8F3	#FFFFFF	#000000	##000000
##63A8F3	1.00	2.49	8.43	8.43
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.43	21.00	1.00	1.00
##000000	8.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#88ACF6

Deuteranopia (green-blind)

#759EF1

Tritanopia (blue-blind)

#00B9C3

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #63a8f3;
/* rgb */ color: rgb(99, 168, 243);
/* oklch */ color: oklch(71.8% 0.131 251.9);

Tailwind

colors: {
  custom: {
    50: '#9ac1f7',
    500: '#63a8f3',
    950: '#000000',
  },
}

SCSS

$custom: #63a8f3;
$custom-light: #9ac1f7;
$custom-dark: #000000;

JSON

{
  "hex": "#63a8f3",
  "rgb": {
    "r": 99,
    "g": 168,
    "b": 243
  },
  "hsl": {
    "h": 211.25,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.71792,
    "c": 0.13067,
    "h": 251.9
  },
  "luminance": 0.37129
}

Semantic roles & 50–950 ramp

primary

#63A8F3

secondary

#F0DAC2

accent

#7703E2

background

#FAFBFF

surface

#F3F7FF

border

#CDD0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A8F3

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

Preview Lab → · Contrast checker → · Palette generator →