#63B2F3#63B2F3

#63B2F3 is a light, vivid cyan. Relative luminance 0.410; OKLCH L 74.0% C 0.123 H 245.4°. Best body text is #000000 at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#63B2F3
RGB	rgb(99, 178, 243)
HSL	hsl(207, 86%, 67%)
HSV	hsv(207, 59%, 95%)
CMYK	cmyk(59.3%, 26.7%, 0%, 4.7%)
CIE-LAB	lab(70.15, -5.47, -39.66)
CIE-LCH	lch(70.15, 40.04, 262.15°)
OKLab	oklab(73.98% -0.0512 -0.1115)
OKLCH	oklch(73.98% 0.123 245.4)
XYZ	xyz(37.2377, 40.9610, 90.7205)
Luminance	0.4097 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B2F3 #F3A463

analogous

#63F3EC #63B2F3 #636AF3

triadic

#63B2F3 #F363B2 #B2F363

tetradic

#63B2F3 #EC63F3 #F3A463 #6AF363

square

#63B2F3 #EC63F3 #F3A463 #6AF363

split-complementary

#63B2F3 #F3636A #F3EC63

monochromatic

#1077CC #2A96EF #63B2F3 #9CCEF7 #D5EAFC

Accessibility & contrast

On white

2.28

#63B2F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.19

#63B2F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B2F3

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B2F3	#FFFFFF	#000000	##000000
##63B2F3	1.00	2.28	9.19	9.19
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.19	21.00	1.00	1.00
##000000	9.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96B3F6

Deuteranopia (green-blind)

#82A5F2

Tritanopia (blue-blind)

#00C2C8

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #63b2f3;
/* rgb */ color: rgb(99, 178, 243);
/* oklch */ color: oklch(74.0% 0.123 245.4);

Tailwind

colors: {
  custom: {
    50: '#9ac8f7',
    500: '#63b2f3',
    950: '#000000',
  },
}

SCSS

$custom: #63b2f3;
$custom-light: #9ac8f7;
$custom-dark: #000000;

JSON

{
  "hex": "#63b2f3",
  "rgb": {
    "r": 99,
    "g": 178,
    "b": 243
  },
  "hsl": {
    "h": 207.083,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.73977,
    "c": 0.12269,
    "h": 245.4
  },
  "luminance": 0.40965
}

Semantic roles & 50–950 ramp

primary

#63B2F3

secondary

#F0D7C2

accent

#6803E2

background

#FAFCFF

surface

#F3F8FE

border

#CDD1D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B2F3

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

Preview Lab → · Contrast checker → · Palette generator →