#6599E6#6599E6

#6599E6 is a light, vivid blue. Relative luminance 0.313; OKLCH L 68.0% C 0.127 H 258.0°. Best body text is #000000 at 7.25:1 contrast (WCAG AA passes).

Color values

HEX#6599E6
RGBrgb(101, 153, 230)
HSLhsl(216, 72%, 65%)
HSVhsv(216, 56%, 90%)
CMYKcmyk(56.1%, 33.5%, 0%, 9.8%)
CIE-LABlab(62.73, 4.97, -44.17)
CIE-LCHlch(62.73, 44.45, 276.42°)
OKLaboklab(67.99% -0.0264 -0.1247)
OKLCHoklch(67.99% 0.127 258)
XYZxyz(31.0360, 31.2598, 79.2458)
Luminance0.3126 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6599E6 #E6B265
analogous
#65D9E6 #6599E6 #7265E6
triadic
#6599E6 #E66599 #99E665
tetradic
#6599E6 #E665D9 #E6B265 #65E672
square
#6599E6 #E665D9 #E6B265 #65E672
split-complementary
#6599E6 #E67265 #D9E665
monochromatic
#1D5AB3 #3076DD #6599E6 #9ABCEF #CEDFF7

Accessibility & contrast

On white

2.90
#6599E6 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.25
#6599E6 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6599E6
7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6599E6#FFFFFF#000000##000000
##6599E61.002.907.257.25
#FFFFFF2.901.0021.0021.00
#0000007.2521.001.001.00
##0000007.2521.001.001.00

Color blindness preview

Protanopia (red-blind)
#7A9EE9
Deuteranopia (green-blind)
#6992E4
Tritanopia (blue-blind)
#00AAB5
Achromatopsia (no color)
#989898

Design tokens & code

CSS
--color: #6599e6;
/* rgb */ color: rgb(101, 153, 230);
/* oklch */ color: oklch(68.0% 0.127 258.0);
Tailwind
colors: {
  custom: {
    50: '#9ab6ee',
    500: '#6599e6',
    950: '#000000',
  },
}
SCSS
$custom: #6599e6;
$custom-light: #9ab6ee;
$custom-dark: #000000;
JSON
{
  "hex": "#6599e6",
  "rgb": {
    "r": 101,
    "g": 153,
    "b": 230
  },
  "hsl": {
    "h": 215.814,
    "s": 72.067,
    "l": 64.902
  },
  "oklch": {
    "l": 0.67987,
    "c": 0.12749,
    "h": 258
  },
  "luminance": 0.31262
}

Semantic roles & 50–950 ramp

primary
#6599E6
secondary
#E9D8BD
accent
#8611D4
background
#F9FBFE
surface
#F2F6FD
border
#CCD0D5
text
#0F1116
muted
#7E8084

Preview Lab

Preview with #6599E6

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

Preview Lab → · Contrast checker → · Palette generator →

#6599E6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva