#63A4FB#63A4FB

#63A4FB is a light, vivid cyan. Relative luminance 0.362; OKLCH L 71.3% C 0.144 H 256.2°. Best body text is #000000 at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#63A4FB
RGB	rgb(99, 164, 251)
HSL	hsl(214, 95%, 69%)
HSV	hsv(214, 61%, 98%)
CMYK	cmyk(60.6%, 34.7%, 0%, 1.6%)
CIE-LAB	lab(66.65, 4.95, -49.51)
CIE-LCH	lch(66.65, 49.76, 275.71°)
OKLab	oklab(71.35% -0.0344 -0.1402)
OKLCH	oklch(71.35% 0.144 256.2)
XYZ	xyz(35.8274, 36.1653, 96.3406)
Luminance	0.3617 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A4FB #FBBA63

analogous

#63F0FB #63A4FB #6E63FB

triadic

#63A4FB #FB63A4 #A4FB63

tetradic

#63A4FB #FB63F0 #FBBA63 #63FB6E

square

#63A4FB #FB63F0 #FBBA63 #63FB6E

split-complementary

#63A4FB #FB6E63 #F0FB63

monochromatic

#0662DE #2781F9 #63A4FB #9FC7FD #DAEAFE

Accessibility & contrast

On white

2.55

#63A4FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.23

#63A4FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A4FB

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A4FB	#FFFFFF	#000000	##000000
##63A4FB	1.00	2.55	8.23	8.23
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.23	21.00	1.00	1.00
##000000	8.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7FAAFF

Deuteranopia (green-blind)

#6A9CF9

Tritanopia (blue-blind)

#00B8C4

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #63a4fb;
/* rgb */ color: rgb(99, 164, 251);
/* oklch */ color: oklch(71.3% 0.144 256.2);

Tailwind

colors: {
  custom: {
    50: '#9bbefd',
    500: '#63a4fb',
    950: '#000000',
  },
}

SCSS

$custom: #63a4fb;
$custom-light: #9bbefd;
$custom-dark: #000000;

JSON

{
  "hex": "#63a4fb",
  "rgb": {
    "r": 99,
    "g": 164,
    "b": 251
  },
  "hsl": {
    "h": 214.342,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.71347,
    "c": 0.1444,
    "h": 256.2
  },
  "luminance": 0.36169
}

Semantic roles & 50–950 ramp

primary

#63A4FB

secondary

#F4E0C6

accent

#8300E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A4FB

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

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