#6490BB#6490BB

#6490BB is a light, moderate cyan. Relative luminance 0.262; OKLCH L 63.9% C 0.081 H 248.6°. Best body text is #000000 at 6.25:1 contrast (WCAG AA passes).

Color values

HEX#6490BB
RGBrgb(100, 144, 187)
HSLhsl(210, 39%, 56%)
HSVhsv(210, 47%, 73%)
CMYKcmyk(46.5%, 23%, 0%, 26.7%)
CIE-LABlab(58.27, -3.23, -27.07)
CIE-LCHlch(58.27, 27.26, 263.20°)
OKLaboklab(63.86% -0.0295 -0.0754)
OKLCHoklch(63.86% 0.081 248.6)
XYZxyz(24.1954, 26.2421, 50.7943)
Luminance0.2624 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6490BB #BB8F64
analogous
#64BBBB #6490BB #6465BB
triadic
#6490BB #BB6490 #90BB64
tetradic
#6490BB #BB64BB #BB8F64 #65BB64
square
#6490BB #BB64BB #BB8F64 #65BB64
split-complementary
#6490BB #BB6465 #BBBB64
monochromatic
#325372 #45719D #6490BB #8FAECE #B9CDE0

Accessibility & contrast

On white

3.36
#6490BB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.25
#6490BB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6490BB
6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6490BB#FFFFFF#000000##000000
##6490BB1.003.366.256.25
#FFFFFF3.361.0021.0021.00
#0000006.2521.001.001.00
##0000006.2521.001.001.00

Color blindness preview

Protanopia (red-blind)
#7F91BD
Deuteranopia (green-blind)
#7488BA
Tritanopia (blue-blind)
#3F9A9F
Achromatopsia (no color)
#8C8C8C

Design tokens & code

CSS
--color: #6490bb;
/* rgb */ color: rgb(100, 144, 187);
/* oklch */ color: oklch(63.9% 0.081 248.6);
Tailwind
colors: {
  custom: {
    50: '#94b0cf',
    500: '#6490bb',
    950: '#000000',
  },
}
SCSS
$custom: #6490bb;
$custom-light: #94b0cf;
$custom-dark: #000000;
JSON
{
  "hex": "#6490bb",
  "rgb": {
    "r": 100,
    "g": 144,
    "b": 187
  },
  "hsl": {
    "h": 209.655,
    "s": 39.013,
    "l": 56.275
  },
  "oklch": {
    "l": 0.63858,
    "c": 0.08094,
    "h": 248.6
  },
  "luminance": 0.26244
}

Semantic roles & 50–950 ramp

primary
#6490BB
secondary
#CFBDAB
accent
#9359CF
background
#F9FAFC
surface
#F2F4F9
border
#CCCED2
text
#0D1014
muted
#7E7F82

Preview Lab

Preview with #6490BB

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

Preview Lab → · Contrast checker → · Palette generator →

#6490BB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva