#63A8EC#63A8EC

#63A8EC is a light, vivid cyan. Relative luminance 0.367; OKLCH L 71.4% C 0.122 H 249.6°. Best body text is #000000 at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#63A8EC
RGB	rgb(99, 168, 236)
HSL	hsl(210, 78%, 66%)
HSV	hsv(210, 58%, 93%)
CMYK	cmyk(58.1%, 28.8%, 0%, 7.5%)
CIE-LAB	lab(67.06, -2.10, -40.67)
CIE-LCH	lch(67.06, 40.73, 267.05°)
OKLab	oklab(71.45% -0.0426 -0.1145)
OKLCH	oklch(71.45% 0.122 249.6)
XYZ	xyz(34.2831, 36.7110, 84.6199)
Luminance	0.3671 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A8EC #ECA763

analogous

#63ECEC #63A8EC #6363EC

triadic

#63A8EC #EC63A8 #A8EC63

tetradic

#63A8EC #EC63EC #ECA763 #63EC63

square

#63A8EC #EC63EC #ECA763 #63EC63

split-complementary

#63A8EC #EC6363 #ECEC63

monochromatic

#176BBE #2C8AE5 #63A8EC #9AC6F3 #D0E5F9

Accessibility & contrast

On white

2.52

#63A8EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.34

#63A8EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A8EC

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A8EC	#FFFFFF	#000000	##000000
##63A8EC	1.00	2.52	8.34	8.34
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.34	21.00	1.00	1.00
##000000	8.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BABEF

Deuteranopia (green-blind)

#799DEB

Tritanopia (blue-blind)

#00B8C0

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #63a8ec;
/* rgb */ color: rgb(99, 168, 236);
/* oklch */ color: oklch(71.4% 0.122 249.6);

Tailwind

colors: {
  custom: {
    50: '#99c1f2',
    500: '#63a8ec',
    950: '#000000',
  },
}

SCSS

$custom: #63a8ec;
$custom-light: #99c1f2;
$custom-dark: #000000;

JSON

{
  "hex": "#63a8ec",
  "rgb": {
    "r": 99,
    "g": 168,
    "b": 236
  },
  "hsl": {
    "h": 209.781,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.71445,
    "c": 0.12217,
    "h": 249.6
  },
  "luminance": 0.36714
}

Semantic roles & 50–950 ramp

primary

#63A8EC

secondary

#ECD5BF

accent

#720BDB

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A8EC

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

Preview Lab → · Contrast checker → · Palette generator →