#63AAFF#63AAFF

#63AAFF is a light, vivid cyan. Relative luminance 0.386; OKLCH L 72.8% C 0.144 H 254.0°. Best body text is #000000 at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#63AAFF
RGB	rgb(99, 170, 255)
HSL	hsl(213, 100%, 69%)
HSV	hsv(213, 61%, 100%)
CMYK	cmyk(61.2%, 33.3%, 0%, 0%)
CIE-LAB	lab(68.47, 2.82, -48.80)
CIE-LCH	lch(68.47, 48.88, 273.30°)
OKLab	oklab(72.84% -0.0395 -0.1381)
OKLCH	oklch(72.84% 0.144 254)
XYZ	xyz(37.5638, 38.6186, 100.0629)
Luminance	0.3862 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AAFF #FFB863

analogous

#63F8FF #63AAFF #6A63FF

triadic

#63AAFF #FF63AA #AAFF63

tetradic

#63AAFF #FF63F8 #FFB863 #63FF6A

square

#63AAFF #FF63F8 #FFB863 #63FF6A

split-complementary

#63AAFF #FF6A63 #F8FF63

monochromatic

#0069E8 #2689FF #63AAFF #A0CBFF #DDEDFF

Accessibility & contrast

On white

2.41

#63AAFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.72

#63AAFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AAFF

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AAFF	#FFFFFF	#000000	##000000
##63AAFF	1.00	2.41	8.72	8.72
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.72	21.00	1.00	1.00
##000000	8.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86AFFF

Deuteranopia (green-blind)

#71A0FD

Tritanopia (blue-blind)

#00BEC9

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #63aaff;
/* rgb */ color: rgb(99, 170, 255);
/* oklch */ color: oklch(72.8% 0.144 254.0);

Tailwind

colors: {
  custom: {
    50: '#9cc2ff',
    500: '#63aaff',
    950: '#000000',
  },
}

SCSS

$custom: #63aaff;
$custom-light: #9cc2ff;
$custom-dark: #000000;

JSON

{
  "hex": "#63aaff",
  "rgb": {
    "r": 99,
    "g": 170,
    "b": 255
  },
  "hsl": {
    "h": 212.692,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.72837,
    "c": 0.14365,
    "h": 254
  },
  "luminance": 0.38622
}

Semantic roles & 50–950 ramp

primary

#63AAFF

secondary

#F5E1C8

accent

#7D00E6

background

#FAFBFF

surface

#F4F7FF

border

#CED0D7

text

#0F1218

muted

#7F8186

Preview Lab

Preview with #63AAFF

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

Preview Lab → · Contrast checker → · Palette generator →