#63B0FB#63B0FB

#63B0FB is a light, vivid cyan. Relative luminance 0.407; OKLCH L 73.9% C 0.133 H 249.5°. Best body text is #000000 at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#63B0FB
RGB	rgb(99, 176, 251)
HSL	hsl(210, 95%, 69%)
HSV	hsv(210, 61%, 98%)
CMYK	cmyk(60.6%, 29.9%, 0%, 1.6%)
CIE-LAB	lab(69.94, -1.84, -44.33)
CIE-LCH	lch(69.94, 44.37, 267.62°)
OKLab	oklab(73.93% -0.0467 -0.125)
OKLCH	oklch(73.93% 0.133 249.5)
XYZ	xyz(38.0771, 40.6648, 97.0905)
Luminance	0.4067 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B0FB #FBAE63

analogous

#63FBFA #63B0FB #6364FB

triadic

#63B0FB #FB63B0 #B0FB63

tetradic

#63B0FB #FA63FB #FBAE63 #64FB63

square

#63B0FB #FA63FB #FBAE63 #64FB63

split-complementary

#63B0FB #FB6364 #FBFA63

monochromatic

#0673DE #2792F9 #63B0FB #9FCEFD #DAECFE

Accessibility & contrast

On white

2.30

#63B0FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.13

#63B0FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B0FB

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B0FB	#FFFFFF	#000000	##000000
##63B0FB	1.00	2.30	9.13	9.13
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.13	21.00	1.00	1.00
##000000	9.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90B3FE

Deuteranopia (green-blind)

#7BA4FA

Tritanopia (blue-blind)

#00C2CB

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #63b0fb;
/* rgb */ color: rgb(99, 176, 251);
/* oklch */ color: oklch(73.9% 0.133 249.5);

Tailwind

colors: {
  custom: {
    50: '#9bc7fd',
    500: '#63b0fb',
    950: '#000000',
  },
}

SCSS

$custom: #63b0fb;
$custom-light: #9bc7fd;
$custom-dark: #000000;

JSON

{
  "hex": "#63b0fb",
  "rgb": {
    "r": 99,
    "g": 176,
    "b": 251
  },
  "hsl": {
    "h": 209.605,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.73927,
    "c": 0.13349,
    "h": 249.5
  },
  "luminance": 0.40668
}

Semantic roles & 50–950 ramp

primary

#63B0FB

secondary

#F4DDC6

accent

#7100E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B0FB

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

Preview Lab → · Contrast checker → · Palette generator →