#63A1F9#63A1F9

#63A1F9 is a light, vivid blue. Relative luminance 0.350; OKLCH L 70.6% C 0.145 H 257.3°. Best body text is #000000 at 8.00:1 contrast (WCAG AA passes).

Color values

HEX#63A1F9
RGBrgb(99, 161, 249)
HSLhsl(215, 93%, 68%)
HSVhsv(215, 60%, 98%)
CMYKcmyk(60.2%, 35.3%, 0%, 2.4%)
CIE-LABlab(65.73, 6.03, -49.87)
CIE-LCHlch(65.73, 50.23, 276.90°)
OKLaboklab(70.6% -0.0318 -0.1413)
OKLCHoklch(70.6% 0.145 257.3)
XYZxyz(34.9833, 34.9788, 94.5122)
Luminance0.3498 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63A1F9 #F9BB63
analogous
#63ECF9 #63A1F9 #7063F9
triadic
#63A1F9 #F963A1 #A1F963
tetradic
#63A1F9 #F963EC #F9BB63 #63F970
square
#63A1F9 #F963EC #F9BB63 #63F970
split-complementary
#63A1F9 #F97063 #ECF963
monochromatic
#085FD9 #287DF7 #63A1F9 #9EC5FB #D9E8FE

Accessibility & contrast

On white

2.63
#63A1F9 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.00
#63A1F9 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A1F9
8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63A1F9#FFFFFF#000000##000000
##63A1F91.002.638.008.00
#FFFFFF2.631.0021.0021.00
#0000008.0021.001.001.00
##0000008.0021.001.001.00

Color blindness preview

Protanopia (red-blind)
#7CA7FD
Deuteranopia (green-blind)
#6799F7
Tritanopia (blue-blind)
#00B5C1
Achromatopsia (no color)
#A0A0A0

Design tokens & code

CSS
--color: #63a1f9;
/* rgb */ color: rgb(99, 161, 249);
/* oklch */ color: oklch(70.6% 0.145 257.3);
Tailwind
colors: {
  custom: {
    50: '#9bbcfb',
    500: '#63a1f9',
    950: '#000000',
  },
}
SCSS
$custom: #63a1f9;
$custom-light: #9bbcfb;
$custom-dark: #000000;
JSON
{
  "hex": "#63a1f9",
  "rgb": {
    "r": 99,
    "g": 161,
    "b": 249
  },
  "hsl": {
    "h": 215.2,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.70602,
    "c": 0.14484,
    "h": 257.3
  },
  "luminance": 0.34982
}

Semantic roles & 50–950 ramp

primary
#63A1F9
secondary
#F3E0C5
accent
#8700E6
background
#FAFBFF
surface
#F4F6FF
border
#CED0D7
text
#0F1117
muted
#7F8085

Preview Lab

Preview with #63A1F9

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

Preview Lab → · Contrast checker → · Palette generator →

#63A1F9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva