#63BCF4#63BCF4

#63BCF4 is a light, moderate cyan. Relative luminance 0.452; OKLCH L 76.2% C 0.118 H 238.5°. Best body text is #000000 at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#63BCF4
RGB	rgb(99, 188, 244)
HSL	hsl(203, 87%, 67%)
HSV	hsv(203, 59%, 96%)
CMYK	cmyk(59.4%, 23%, 0%, 4.3%)
CIE-LAB	lab(72.99, -10.60, -35.79)
CIE-LCH	lch(72.99, 37.33, 253.51°)
OKLab	oklab(76.24% -0.0613 -0.1003)
OKLCH	oklch(76.24% 0.118 238.5)
XYZ	xyz(39.4518, 45.1470, 92.2056)
Luminance	0.4515 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BCF4 #F49B63

analogous

#63F4E3 #63BCF4 #6374F4

triadic

#63BCF4 #F463BC #BCF463

tetradic

#63BCF4 #E363F4 #F49B63 #74F463

square

#63BCF4 #E363F4 #F49B63 #74F463

split-complementary

#63BCF4 #F46374 #F4E363

monochromatic

#0F84CE #2AA3F0 #63BCF4 #9CD5F8 #D5EDFC

Accessibility & contrast

On white

2.09

#63BCF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.03

#63BCF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BCF4

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BCF4	#FFFFFF	#000000	##000000
##63BCF4	1.00	2.09	10.03	10.03
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.03	21.00	1.00	1.00
##000000	10.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2BBF7

Deuteranopia (green-blind)

#8EADF3

Tritanopia (blue-blind)

#00CACF

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #63bcf4;
/* rgb */ color: rgb(99, 188, 244);
/* oklch */ color: oklch(76.2% 0.118 238.5);

Tailwind

colors: {
  custom: {
    50: '#9bd0f8',
    500: '#63bcf4',
    950: '#000000',
  },
}

SCSS

$custom: #63bcf4;
$custom-light: #9bd0f8;
$custom-dark: #000000;

JSON

{
  "hex": "#63bcf4",
  "rgb": {
    "r": 99,
    "g": 188,
    "b": 244
  },
  "hsl": {
    "h": 203.172,
    "s": 86.826,
    "l": 67.255
  },
  "oklch": {
    "l": 0.76236,
    "c": 0.11755,
    "h": 238.5
  },
  "luminance": 0.45151
}

Semantic roles & 50–950 ramp

primary

#63BCF4

secondary

#F0D4C3

accent

#5902E3

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63BCF4

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

Preview Lab → · Contrast checker → · Palette generator →