#63C5F4#63C5F4

#63C5F4 is a light, moderate cyan. Relative luminance 0.491; OKLCH L 78.2% C 0.114 H 231.5°. Best body text is #000000 at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#63C5F4
RGB	rgb(99, 197, 244)
HSL	hsl(199, 87%, 67%)
HSV	hsv(199, 59%, 96%)
CMYK	cmyk(59.4%, 19.3%, 0%, 4.3%)
CIE-LAB	lab(75.52, -15.37, -31.87)
CIE-LCH	lch(75.52, 35.38, 244.26°)
OKLab	oklab(78.25% -0.0707 -0.089)
OKLCH	oklch(78.25% 0.114 231.5)
XYZ	xyz(41.4347, 49.1128, 92.8665)
Luminance	0.4912 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C5F4 #F49263

analogous

#63F4DA #63C5F4 #637DF4

triadic

#63C5F4 #F463C5 #C5F463

tetradic

#63C5F4 #DA63F4 #F49263 #7DF463

square

#63C5F4 #DA63F4 #F49263 #7DF463

split-complementary

#63C5F4 #F4637D #F4DA63

monochromatic

#0F90CE #2AB0F0 #63C5F4 #9CDAF8 #D5F0FC

Accessibility & contrast

On white

1.94

#63C5F4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.82

#63C5F4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C5F4

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C5F4	#FFFFFF	#000000	##000000
##63C5F4	1.00	1.94	10.82	10.82
#FFFFFF	1.94	1.00	21.00	21.00
#000000	10.82	21.00	1.00	1.00
##000000	10.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEC3F6

Deuteranopia (green-blind)

#99B3F3

Tritanopia (blue-blind)

#00D2D4

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #63c5f4;
/* rgb */ color: rgb(99, 197, 244);
/* oklch */ color: oklch(78.2% 0.114 231.5);

Tailwind

colors: {
  custom: {
    50: '#9bd6f8',
    500: '#63c5f4',
    950: '#000000',
  },
}

SCSS

$custom: #63c5f4;
$custom-light: #9bd6f8;
$custom-dark: #000000;

JSON

{
  "hex": "#63c5f4",
  "rgb": {
    "r": 99,
    "g": 197,
    "b": 244
  },
  "hsl": {
    "h": 199.448,
    "s": 86.826,
    "l": 67.255
  },
  "oklch": {
    "l": 0.78248,
    "c": 0.11371,
    "h": 231.5
  },
  "luminance": 0.49117
}

Semantic roles & 50–950 ramp

primary

#63C5F4

secondary

#F0D1C3

accent

#4B02E3

background

#FAFDFF

surface

#F4FAFF

border

#CED3D7

text

#0F1417

muted

#7F8385

Preview Lab

Preview with #63C5F4

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

Preview Lab → · Contrast checker → · Palette generator →