#63A4EF#63A4EF

#63A4EF is a light, vivid cyan. Relative luminance 0.354; OKLCH L 70.7% C 0.129 H 253.1°. Best body text is #000000 at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#63A4EF
RGB	rgb(99, 164, 239)
HSL	hsl(212, 81%, 66%)
HSV	hsv(212, 59%, 94%)
CMYK	cmyk(58.6%, 31.4%, 0%, 6.3%)
CIE-LAB	lab(66.08, 1.11, -43.84)
CIE-LCH	lch(66.08, 43.86, 271.45°)
OKLab	oklab(70.72% -0.0375 -0.1237)
OKLCH	oklch(70.72% 0.129 253.1)
XYZ	xyz(33.9955, 35.4325, 86.6923)
Luminance	0.3544 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A4EF #EFAE63

analogous

#63EAEF #63A4EF #6863EF

triadic

#63A4EF #EF63A4 #A4EF63

tetradic

#63A4EF #EF63EA #EFAE63 #63EF68

square

#63A4EF #EF63EA #EFAE63 #63EF68

split-complementary

#63A4EF #EF6863 #EAEF63

monochromatic

#1466C4 #2B84E9 #63A4EF #9BC4F5 #D2E5FA

Accessibility & contrast

On white

2.60

#63A4EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.09

#63A4EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A4EF

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A4EF	#FFFFFF	#000000	##000000
##63A4EF	1.00	2.60	8.09	8.09
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.09	21.00	1.00	1.00
##000000	8.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85A8F2

Deuteranopia (green-blind)

#729BED

Tritanopia (blue-blind)

#00B5BF

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #63a4ef;
/* rgb */ color: rgb(99, 164, 239);
/* oklch */ color: oklch(70.7% 0.129 253.1);

Tailwind

colors: {
  custom: {
    50: '#9abef4',
    500: '#63a4ef',
    950: '#000000',
  },
}

SCSS

$custom: #63a4ef;
$custom-light: #9abef4;
$custom-dark: #000000;

JSON

{
  "hex": "#63a4ef",
  "rgb": {
    "r": 99,
    "g": 164,
    "b": 239
  },
  "hsl": {
    "h": 212.143,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.70723,
    "c": 0.1293,
    "h": 253.1
  },
  "luminance": 0.35436
}

Semantic roles & 50–950 ramp

primary

#63A4EF

secondary

#EED9C0

accent

#7A08DE

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A4EF

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

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