#63ABF3#63ABF3

#63ABF3 is a light, vivid cyan. Relative luminance 0.383; OKLCH L 72.4% C 0.128 H 250.0°. Best body text is #000000 at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#63ABF3
RGB	rgb(99, 171, 243)
HSL	hsl(210, 86%, 67%)
HSV	hsv(210, 59%, 95%)
CMYK	cmyk(59.3%, 29.6%, 0%, 4.7%)
CIE-LAB	lab(68.20, -1.58, -42.71)
CIE-LCH	lch(68.20, 42.74, 267.89°)
OKLab	oklab(72.44% -0.0438 -0.1204)
OKLCH	oklch(72.44% 0.128 250)
XYZ	xyz(35.8803, 38.2463, 90.2681)
Luminance	0.3825 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63ABF3 #F3AB63

analogous

#63F3F3 #63ABF3 #6363F3

triadic

#63ABF3 #F363AB #ABF363

tetradic

#63ABF3 #F363F3 #F3AB63 #63F363

square

#63ABF3 #F363F3 #F3AB63 #63F363

split-complementary

#63ABF3 #F36363 #F3F363

monochromatic

#106ECC #2A8CEF #63ABF3 #9CCAF7 #D5E8FC

Accessibility & contrast

On white

2.43

#63ABF3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.65

#63ABF3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ABF3

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63ABF3	#FFFFFF	#000000	##000000
##63ABF3	1.00	2.43	8.65	8.65
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.65	21.00	1.00	1.00
##000000	8.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8CAEF6

Deuteranopia (green-blind)

#79A0F2

Tritanopia (blue-blind)

#00BCC4

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #63abf3;
/* rgb */ color: rgb(99, 171, 243);
/* oklch */ color: oklch(72.4% 0.128 250.0);

Tailwind

colors: {
  custom: {
    50: '#9ac3f7',
    500: '#63abf3',
    950: '#000000',
  },
}

SCSS

$custom: #63abf3;
$custom-light: #9ac3f7;
$custom-dark: #000000;

JSON

{
  "hex": "#63abf3",
  "rgb": {
    "r": 99,
    "g": 171,
    "b": 243
  },
  "hsl": {
    "h": 210,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.72444,
    "c": 0.12809,
    "h": 250
  },
  "luminance": 0.3825
}

Semantic roles & 50–950 ramp

primary

#63ABF3

secondary

#F0D9C2

accent

#7303E2

background

#FAFBFF

surface

#F3F7FF

border

#CDD0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63ABF3

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

Preview Lab → · Contrast checker → · Palette generator →