#6491E3#6491E3

#6491E3 is a light, vivid blue. Relative luminance 0.285; OKLCH L 66.1% C 0.132 H 261.6°. Best body text is #000000 at 6.70:1 contrast (WCAG AA passes).

Color values

HEX#6491E3
RGBrgb(100, 145, 227)
HSLhsl(219, 69%, 64%)
HSVhsv(219, 56%, 89%)
CMYKcmyk(55.9%, 36.1%, 0%, 11%)
CIE-LABlab(60.34, 8.48, -46.27)
CIE-LCHlch(60.34, 47.04, 280.39°)
OKLaboklab(66.07% -0.0193 -0.1309)
OKLCHoklch(66.07% 0.132 261.6)
XYZxyz(29.2413, 28.5038, 76.6190)
Luminance0.2851 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6491E3 #E3B664
analogous
#64D1E3 #6491E3 #7764E3
triadic
#6491E3 #E36491 #91E364
tetradic
#6491E3 #E364D1 #E3B664 #64E377
square
#6491E3 #E364D1 #E3B664 #64E377
split-complementary
#6491E3 #E37764 #D1E364
monochromatic
#1F52AD #306CDA #6491E3 #98B6EC #CCDBF6

Accessibility & contrast

On white

3.13
#6491E3 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.70
#6491E3 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6491E3
6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6491E3#FFFFFF#000000##000000
##6491E31.003.136.706.70
#FFFFFF3.131.0021.0021.00
#0000006.7021.001.001.00
##0000006.7021.001.001.00

Color blindness preview

Protanopia (red-blind)
#6F98E6
Deuteranopia (green-blind)
#5F8CE1
Tritanopia (blue-blind)
#03A3AF
Achromatopsia (no color)
#919191

Design tokens & code

CSS
--color: #6491e3;
/* rgb */ color: rgb(100, 145, 227);
/* oklch */ color: oklch(66.1% 0.132 261.6);
Tailwind
colors: {
  custom: {
    50: '#99b0ec',
    500: '#6491e3',
    950: '#000000',
  },
}
SCSS
$custom: #6491e3;
$custom-light: #99b0ec;
$custom-dark: #000000;
JSON
{
  "hex": "#6491e3",
  "rgb": {
    "r": 100,
    "g": 145,
    "b": 227
  },
  "hsl": {
    "h": 218.74,
    "s": 69.399,
    "l": 64.118
  },
  "oklch": {
    "l": 0.6607,
    "c": 0.13234,
    "h": 261.6
  },
  "luminance": 0.28506
}

Semantic roles & 50–950 ramp

primary
#6491E3
secondary
#E8D8BB
accent
#8E14D1
background
#F9FAFE
surface
#F2F4FD
border
#CCCED5
text
#0F1016
muted
#7E7F84

Preview Lab

Preview with #6491E3

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

Preview Lab → · Contrast checker → · Palette generator →

#6491E3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva