#63C9F5#63C9F5

#63C9F5 is a light, moderate cyan. Relative luminance 0.510; OKLCH L 79.2% C 0.113 H 228.9°. Best body text is #000000 at 11.20:1 contrast (WCAG AA passes).

Color values

HEX#63C9F5
RGBrgb(99, 201, 245)
HSLhsl(198, 88%, 67%)
HSVhsv(198, 60%, 96%)
CMYKcmyk(59.6%, 18%, 0%, 3.9%)
CIE-LABlab(76.69, -17.15, -30.61)
CIE-LCHlch(76.69, 35.09, 240.74°)
OKLaboklab(79.19% -0.0746 -0.0854)
OKLCHoklch(79.19% 0.113 228.9)
XYZxyz(42.5073, 51.0143, 93.9751)
Luminance0.5102 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63C9F5 #F58F63
analogous
#63F5D8 #63C9F5 #6380F5
triadic
#63C9F5 #F563C9 #C9F563
tetradic
#63C9F5 #D863F5 #F58F63 #80F563
square
#63C9F5 #D863F5 #F58F63 #80F563
split-complementary
#63C9F5 #F56380 #F5D863
monochromatic
#0D96D0 #29B5F1 #63C9F5 #9DDDF9 #D6F1FC

Accessibility & contrast

On white

1.87
#63C9F5 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.20
#63C9F5 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C9F5
11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63C9F5#FFFFFF#000000##000000
##63C9F51.001.8711.2011.20
#FFFFFF1.871.0021.0021.00
#00000011.2021.001.001.00
##00000011.2021.001.001.00

Color blindness preview

Protanopia (red-blind)
#B2C6F7
Deuteranopia (green-blind)
#9EB7F4
Tritanopia (blue-blind)
#00D5D7
Achromatopsia (no color)
#BDBDBD

Design tokens & code

CSS
--color: #63c9f5;
/* rgb */ color: rgb(99, 201, 245);
/* oklch */ color: oklch(79.2% 0.113 228.9);
Tailwind
colors: {
  custom: {
    50: '#9bd9f8',
    500: '#63c9f5',
    950: '#000000',
  },
}
SCSS
$custom: #63c9f5;
$custom-light: #9bd9f8;
$custom-dark: #000000;
JSON
{
  "hex": "#63c9f5",
  "rgb": {
    "r": 99,
    "g": 201,
    "b": 245
  },
  "hsl": {
    "h": 198.082,
    "s": 87.952,
    "l": 67.451
  },
  "oklch": {
    "l": 0.79189,
    "c": 0.11339,
    "h": 228.9
  },
  "luminance": 0.51019
}

Semantic roles & 50–950 ramp

primary
#63C9F5
secondary
#CC5F30
accent
#4601E5
background
#FCFEFF
surface
#F6FBFF
border
#D0D4D7
text
#0F1417
muted
#808385

Preview Lab

Preview with #63C9F5

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

Preview Lab → · Contrast checker → · Palette generator →

#63C9F5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva