#63CBF8#63CBF8

#63CBF8 is a light, moderate cyan. Relative luminance 0.521; OKLCH L 79.8% C 0.115 H 229.0°. Best body text is #000000 at 11.43:1 contrast (WCAG AA passes).

Color values

HEX#63CBF8
RGBrgb(99, 203, 248)
HSLhsl(198, 91%, 68%)
HSVhsv(198, 60%, 97%)
CMYKcmyk(60.1%, 18.1%, 0%, 2.7%)
CIE-LABlab(77.36, -17.29, -31.18)
CIE-LCHlch(77.36, 35.66, 240.99°)
OKLaboklab(79.76% -0.0756 -0.087)
OKLCHoklch(79.76% 0.115 229)
XYZxyz(43.4382, 52.1375, 96.5631)
Luminance0.5214 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63CBF8 #F89063
analogous
#63F8DB #63CBF8 #6380F8
triadic
#63CBF8 #F863CB #CBF863
tetradic
#63CBF8 #DB63F8 #F89063 #80F863
square
#63CBF8 #DB63F8 #F89063 #80F863
split-complementary
#63CBF8 #F86380 #F8DB63
monochromatic
#0A99D7 #28B7F5 #63CBF8 #9EDFFB #D8F2FD

Accessibility & contrast

On white

1.84
#63CBF8 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.43
#63CBF8 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CBF8
11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63CBF8#FFFFFF#000000##000000
##63CBF81.001.8411.4311.43
#FFFFFF1.841.0021.0021.00
#00000011.4321.001.001.00
##00000011.4321.001.001.00

Color blindness preview

Protanopia (red-blind)
#B4C8FA
Deuteranopia (green-blind)
#9FB8F7
Tritanopia (blue-blind)
#00D8DA
Achromatopsia (no color)
#BFBFBF

Design tokens & code

CSS
--color: #63cbf8;
/* rgb */ color: rgb(99, 203, 248);
/* oklch */ color: oklch(79.8% 0.115 229.0);
Tailwind
colors: {
  custom: {
    50: '#9cdafa',
    500: '#63cbf8',
    950: '#000000',
  },
}
SCSS
$custom: #63cbf8;
$custom-light: #9cdafa;
$custom-dark: #000000;
JSON
{
  "hex": "#63cbf8",
  "rgb": {
    "r": 99,
    "g": 203,
    "b": 248
  },
  "hsl": {
    "h": 198.121,
    "s": 91.411,
    "l": 68.039
  },
  "oklch": {
    "l": 0.79764,
    "c": 0.11527,
    "h": 229
  },
  "luminance": 0.52142
}

Semantic roles & 50–950 ramp

primary
#63CBF8
secondary
#D15F2E
accent
#4500E6
background
#FCFEFF
surface
#F6FBFF
border
#D0D4D7
text
#0F1517
muted
#808485

Preview Lab

Preview with #63CBF8

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

Preview Lab → · Contrast checker → · Palette generator →

#63CBF8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva