#63B0EE#63B0EE

#63B0EE is a light, moderate cyan. Relative luminance 0.399; OKLCH L 73.3% C 0.118 H 244.7°. Best body text is #000000 at 8.98:1 contrast (WCAG AA passes).

Color values

HEX#63B0EE
RGBrgb(99, 176, 238)
HSLhsl(207, 80%, 66%)
HSVhsv(207, 58%, 93%)
CMYKcmyk(58.4%, 26.1%, 0%, 6.7%)
CIE-LABlab(69.38, -5.92, -38.15)
CIE-LCHlch(69.38, 38.60, 261.18°)
OKLaboklab(73.3% -0.0506 -0.1071)
OKLCHoklch(73.3% 0.118 244.7)
XYZxyz(36.0979, 39.8731, 86.6663)
Luminance0.3988 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63B0EE #EEA163
analogous
#63EEE7 #63B0EE #636AEE
triadic
#63B0EE #EE63B0 #B0EE63
tetradic
#63B0EE #E763EE #EEA163 #6AEE63
square
#63B0EE #E763EE #EEA163 #6AEE63
split-complementary
#63B0EE #EE636A #EEE763
monochromatic
#1575C2 #2C94E8 #63B0EE #9ACCF4 #D1E8FA

Accessibility & contrast

On white

2.34
#63B0EE on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.98
#63B0EE on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B0EE
8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63B0EE#FFFFFF#000000##000000
##63B0EE1.002.348.988.98
#FFFFFF2.341.0021.0021.00
#0000008.9821.001.001.00
##0000008.9821.001.001.00

Color blindness preview

Protanopia (red-blind)
#95B1F1
Deuteranopia (green-blind)
#82A3ED
Tritanopia (blue-blind)
#00BFC5
Achromatopsia (no color)
#A9A9A9

Design tokens & code

CSS
--color: #63b0ee;
/* rgb */ color: rgb(99, 176, 238);
/* oklch */ color: oklch(73.3% 0.118 244.7);
Tailwind
colors: {
  custom: {
    50: '#9ac7f3',
    500: '#63b0ee',
    950: '#000000',
  },
}
SCSS
$custom: #63b0ee;
$custom-light: #9ac7f3;
$custom-dark: #000000;
JSON
{
  "hex": "#63b0ee",
  "rgb": {
    "r": 99,
    "g": 176,
    "b": 238
  },
  "hsl": {
    "h": 206.763,
    "s": 80.347,
    "l": 66.078
  },
  "oklch": {
    "l": 0.733,
    "c": 0.11847,
    "h": 244.7
  },
  "luminance": 0.39876
}

Semantic roles & 50–950 ramp

primary
#63B0EE
secondary
#EDD4C0
accent
#6709DD
background
#FAFCFE
surface
#F3F8FD
border
#CDD1D5
text
#0F1317
muted
#7F8285

Preview Lab

Preview with #63B0EE

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

Preview Lab → · Contrast checker → · Palette generator →

#63B0EE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva