#63BBF3#63BBF3

#63BBF3 is a light, moderate cyan. Relative luminance 0.447; OKLCH L 76.0% C 0.117 H 238.8°. Best body text is #000000 at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#63BBF3
RGB	rgb(99, 187, 243)
HSL	hsl(203, 86%, 67%)
HSV	hsv(203, 59%, 95%)
CMYK	cmyk(59.3%, 23%, 0%, 4.7%)
CIE-LAB	lab(72.67, -10.37, -35.75)
CIE-LCH	lch(72.67, 37.22, 253.83°)
OKLab	oklab(75.97% -0.0606 -0.1002)
OKLCH	oklch(75.97% 0.117 238.8)
XYZ	xyz(39.0875, 44.6607, 91.3371)
Luminance	0.4466 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBF3 #F39B63

analogous

#63F3E3 #63BBF3 #6373F3

triadic

#63BBF3 #F363BB #BBF363

tetradic

#63BBF3 #E363F3 #F39B63 #73F363

square

#63BBF3 #E363F3 #F39B63 #73F363

split-complementary

#63BBF3 #F36373 #F3E363

monochromatic

#1083CC #2AA2EF #63BBF3 #9CD4F7 #D5EDFC

Accessibility & contrast

On white

2.11

#63BBF3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.93

#63BBF3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBF3

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBF3	#FFFFFF	#000000	##000000
##63BBF3	1.00	2.11	9.93	9.93
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.93	21.00	1.00	1.00
##000000	9.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1BAF6

Deuteranopia (green-blind)

#8EACF2

Tritanopia (blue-blind)

#00C9CE

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #63bbf3;
/* rgb */ color: rgb(99, 187, 243);
/* oklch */ color: oklch(76.0% 0.117 238.8);

Tailwind

colors: {
  custom: {
    50: '#9bcff7',
    500: '#63bbf3',
    950: '#000000',
  },
}

SCSS

$custom: #63bbf3;
$custom-light: #9bcff7;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbf3",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 243
  },
  "hsl": {
    "h": 203.333,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.75969,
    "c": 0.11707,
    "h": 238.8
  },
  "luminance": 0.44664
}

Semantic roles & 50–950 ramp

primary

#63BBF3

secondary

#F0D4C2

accent

#5A03E2

background

#FAFCFF

surface

#F4F9FE

border

#CED2D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63BBF3

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

Preview Lab → · Contrast checker → · Palette generator →