#63AEF3#63AEF3

#63AEF3 is a light, vivid cyan. Relative luminance 0.394; OKLCH L 73.1% C 0.126 H 248.1°. Best body text is #000000 at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#63AEF3
RGB	rgb(99, 174, 243)
HSL	hsl(209, 86%, 67%)
HSV	hsv(209, 59%, 95%)
CMYK	cmyk(59.3%, 28.4%, 0%, 4.7%)
CIE-LAB	lab(69.03, -3.25, -41.40)
CIE-LCH	lch(69.03, 41.53, 265.51°)
OKLab	oklab(73.1% -0.047 -0.1166)
OKLCH	oklch(73.1% 0.126 248.1)
XYZ	xyz(36.4534, 39.3925, 90.4591)
Luminance	0.3940 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AEF3 #F3A863

analogous

#63F3F0 #63AEF3 #6366F3

triadic

#63AEF3 #F363AE #AEF363

tetradic

#63AEF3 #F063F3 #F3A863 #66F363

square

#63AEF3 #F063F3 #F3A863 #66F363

split-complementary

#63AEF3 #F36366 #F3F063

monochromatic

#1072CC #2A90EF #63AEF3 #9CCCF7 #D5E9FC

Accessibility & contrast

On white

2.37

#63AEF3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.88

#63AEF3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AEF3

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AEF3	#FFFFFF	#000000	##000000
##63AEF3	1.00	2.37	8.88	8.88
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.88	21.00	1.00	1.00
##000000	8.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90B0F6

Deuteranopia (green-blind)

#7DA2F2

Tritanopia (blue-blind)

#00BEC6

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #63aef3;
/* rgb */ color: rgb(99, 174, 243);
/* oklch */ color: oklch(73.1% 0.126 248.1);

Tailwind

colors: {
  custom: {
    50: '#9ac5f7',
    500: '#63aef3',
    950: '#000000',
  },
}

SCSS

$custom: #63aef3;
$custom-light: #9ac5f7;
$custom-dark: #000000;

JSON

{
  "hex": "#63aef3",
  "rgb": {
    "r": 99,
    "g": 174,
    "b": 243
  },
  "hsl": {
    "h": 208.75,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.73099,
    "c": 0.12567,
    "h": 248.1
  },
  "luminance": 0.39396
}

Semantic roles & 50–950 ramp

primary

#63AEF3

secondary

#F0D8C2

accent

#6E03E2

background

#FAFCFF

surface

#F3F8FE

border

#CDD1D6

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63AEF3

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

Preview Lab → · Contrast checker → · Palette generator →