#63A9EC#63A9EC

#63A9EC is a light, vivid cyan. Relative luminance 0.371; OKLCH L 71.7% C 0.121 H 248.9°. Best body text is #000000 at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#63A9EC
RGB	rgb(99, 169, 236)
HSL	hsl(209, 78%, 66%)
HSV	hsv(209, 58%, 93%)
CMYK	cmyk(58.1%, 28.4%, 0%, 7.5%)
CIE-LAB	lab(67.34, -2.66, -40.24)
CIE-LCH	lch(67.34, 40.33, 266.22°)
OKLab	oklab(71.66% -0.0437 -0.1132)
OKLCH	oklch(71.66% 0.121 248.9)
XYZ	xyz(34.4684, 37.0816, 84.6817)
Luminance	0.3709 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A9EC #ECA663

analogous

#63ECEA #63A9EC #6364EC

triadic

#63A9EC #EC63A9 #A9EC63

tetradic

#63A9EC #EA63EC #ECA663 #64EC63

square

#63A9EC #EA63EC #ECA663 #64EC63

split-complementary

#63A9EC #EC6364 #ECEA63

monochromatic

#176CBE #2C8BE5 #63A9EC #9AC7F3 #D0E5F9

Accessibility & contrast

On white

2.49

#63A9EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.42

#63A9EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A9EC

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A9EC	#FFFFFF	#000000	##000000
##63A9EC	1.00	2.49	8.42	8.42
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.42	21.00	1.00	1.00
##000000	8.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DABEF

Deuteranopia (green-blind)

#7A9EEB

Tritanopia (blue-blind)

#00B9C0

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #63a9ec;
/* rgb */ color: rgb(99, 169, 236);
/* oklch */ color: oklch(71.7% 0.121 248.9);

Tailwind

colors: {
  custom: {
    50: '#99c2f2',
    500: '#63a9ec',
    950: '#000000',
  },
}

SCSS

$custom: #63a9ec;
$custom-light: #99c2f2;
$custom-dark: #000000;

JSON

{
  "hex": "#63a9ec",
  "rgb": {
    "r": 99,
    "g": 169,
    "b": 236
  },
  "hsl": {
    "h": 209.343,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.71664,
    "c": 0.12137,
    "h": 248.9
  },
  "luminance": 0.37085
}

Semantic roles & 50–950 ramp

primary

#63A9EC

secondary

#ECD5BF

accent

#700BDB

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A9EC

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

Preview Lab → · Contrast checker → · Palette generator →