#63A3EC#63A3EC

#63A3EC is a light, vivid cyan. Relative luminance 0.349; OKLCH L 70.4% C 0.126 H 252.8°. Best body text is #000000 at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#63A3EC
RGB	rgb(99, 163, 236)
HSL	hsl(212, 78%, 66%)
HSV	hsv(212, 58%, 93%)
CMYK	cmyk(58.1%, 30.9%, 0%, 7.5%)
CIE-LAB	lab(65.67, 0.73, -42.85)
CIE-LCH	lch(65.67, 42.86, 270.97°)
OKLab	oklab(70.36% -0.0373 -0.1208)
OKLCH	oklch(70.36% 0.126 252.8)
XYZ	xyz(33.3777, 34.9002, 84.3181)
Luminance	0.3490 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A3EC #ECAC63

analogous

#63E7EC #63A3EC #6763EC

triadic

#63A3EC #EC63A3 #A3EC63

tetradic

#63A3EC #EC63E7 #ECAC63 #63EC67

square

#63A3EC #EC63E7 #ECAC63 #63EC67

split-complementary

#63A3EC #EC6763 #E7EC63

monochromatic

#1765BE #2C83E5 #63A3EC #9AC3F3 #D0E3F9

Accessibility & contrast

On white

2.63

#63A3EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.98

#63A3EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A3EC

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A3EC	#FFFFFF	#000000	##000000
##63A3EC	1.00	2.63	7.98	7.98
#FFFFFF	2.63	1.00	21.00	21.00
#000000	7.98	21.00	1.00	1.00
##000000	7.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85A7EF

Deuteranopia (green-blind)

#729AEB

Tritanopia (blue-blind)

#00B4BD

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #63a3ec;
/* rgb */ color: rgb(99, 163, 236);
/* oklch */ color: oklch(70.4% 0.126 252.8);

Tailwind

colors: {
  custom: {
    50: '#99bef2',
    500: '#63a3ec',
    950: '#000000',
  },
}

SCSS

$custom: #63a3ec;
$custom-light: #99bef2;
$custom-dark: #000000;

JSON

{
  "hex": "#63a3ec",
  "rgb": {
    "r": 99,
    "g": 163,
    "b": 236
  },
  "hsl": {
    "h": 211.971,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.70355,
    "c": 0.12647,
    "h": 252.8
  },
  "luminance": 0.34903
}

Semantic roles & 50–950 ramp

primary

#63A3EC

secondary

#ECD7BF

accent

#7A0BDB

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A3EC

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

Preview Lab → · Contrast checker → · Palette generator →