#63B7F1#63B7F1

#63B7F1 is a light, moderate cyan. Relative luminance 0.429; OKLCH L 75.0% C 0.117 H 240.9°. Best body text is #000000 at 9.57:1 contrast (WCAG AA passes).

Color values

HEX#63B7F1
RGBrgb(99, 183, 241)
HSLhsl(205, 84%, 67%)
HSVhsv(205, 59%, 95%)
CMYKcmyk(58.9%, 24.1%, 0%, 5.5%)
CIE-LABlab(71.46, -8.82, -36.53)
CIE-LCHlch(71.46, 37.58, 256.43°)
OKLaboklab(74.99% -0.057 -0.1024)
OKLCHoklch(74.99% 0.117 240.9)
XYZxyz(37.9503, 42.8669, 89.4762)
Luminance0.4287 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63B7F1 #F19D63
analogous
#63F1E4 #63B7F1 #6370F1
triadic
#63B7F1 #F163B7 #B7F163
tetradic
#63B7F1 #E463F1 #F19D63 #70F163
square
#63B7F1 #E463F1 #F19D63 #70F163
split-complementary
#63B7F1 #F16370 #F1E463
monochromatic
#127DC8 #2B9DEC #63B7F1 #9BD1F6 #D3EBFB

Accessibility & contrast

On white

2.19
#63B7F1 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.57
#63B7F1 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B7F1
9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63B7F1#FFFFFF#000000##000000
##63B7F11.002.199.579.57
#FFFFFF2.191.0021.0021.00
#0000009.5721.001.001.00
##0000009.5721.001.001.00

Color blindness preview

Protanopia (red-blind)
#9DB7F4
Deuteranopia (green-blind)
#8AA9F0
Tritanopia (blue-blind)
#00C5CB
Achromatopsia (no color)
#AFAFAF

Design tokens & code

CSS
--color: #63b7f1;
/* rgb */ color: rgb(99, 183, 241);
/* oklch */ color: oklch(75.0% 0.117 240.9);
Tailwind
colors: {
  custom: {
    50: '#9accf6',
    500: '#63b7f1',
    950: '#000000',
  },
}
SCSS
$custom: #63b7f1;
$custom-light: #9accf6;
$custom-dark: #000000;
JSON
{
  "hex": "#63b7f1",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 241
  },
  "hsl": {
    "h": 204.507,
    "s": 83.529,
    "l": 66.667
  },
  "oklch": {
    "l": 0.74989,
    "c": 0.11725,
    "h": 240.9
  },
  "luminance": 0.4287
}

Semantic roles & 50–950 ramp

primary
#63B7F1
secondary
#EFD4C1
accent
#5F06E0
background
#FAFCFF
surface
#F3F8FE
border
#CDD1D6
text
#0F1317
muted
#7F8285

Preview Lab

Preview with #63B7F1

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

Preview Lab → · Contrast checker → · Palette generator →

#63B7F1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva