#63A3EF#63A3EF

#63A3EF is a light, vivid cyan. Relative luminance 0.351; OKLCH L 70.5% C 0.130 H 253.7°. Best body text is #000000 at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#63A3EF
RGB	rgb(99, 163, 239)
HSL	hsl(213, 81%, 66%)
HSV	hsv(213, 59%, 94%)
CMYK	cmyk(58.6%, 31.8%, 0%, 6.3%)
CIE-LAB	lab(65.81, 1.68, -44.28)
CIE-LCH	lch(65.81, 44.31, 272.17°)
OKLab	oklab(70.51% -0.0365 -0.125)
OKLCH	oklch(70.51% 0.13 253.7)
XYZ	xyz(33.8172, 35.0760, 86.6329)
Luminance	0.3508 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A3EF #EFAF63

analogous

#63E9EF #63A3EF #6963EF

triadic

#63A3EF #EF63A3 #A3EF63

tetradic

#63A3EF #EF63E9 #EFAF63 #63EF69

square

#63A3EF #EF63E9 #EFAF63 #63EF69

split-complementary

#63A3EF #EF6963 #E9EF63

monochromatic

#1464C4 #2B82E9 #63A3EF #9BC4F5 #D2E4FA

Accessibility & contrast

On white

2.62

#63A3EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.02

#63A3EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A3EF

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A3EF	#FFFFFF	#000000	##000000
##63A3EF	1.00	2.62	8.02	8.02
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.02	21.00	1.00	1.00
##000000	8.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#83A7F2

Deuteranopia (green-blind)

#719AED

Tritanopia (blue-blind)

#00B4BE

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #63a3ef;
/* rgb */ color: rgb(99, 163, 239);
/* oklch */ color: oklch(70.5% 0.130 253.7);

Tailwind

colors: {
  custom: {
    50: '#9abdf4',
    500: '#63a3ef',
    950: '#000000',
  },
}

SCSS

$custom: #63a3ef;
$custom-light: #9abdf4;
$custom-dark: #000000;

JSON

{
  "hex": "#63a3ef",
  "rgb": {
    "r": 99,
    "g": 163,
    "b": 239
  },
  "hsl": {
    "h": 212.571,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.70507,
    "c": 0.13021,
    "h": 253.7
  },
  "luminance": 0.35079
}

Semantic roles & 50–950 ramp

primary

#63A3EF

secondary

#EED9C0

accent

#7C08DE

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A3EF

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

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