#6583FB#6583FB

#6583FB is a light, vivid blue. Relative luminance 0.260; OKLCH L 64.7% C 0.181 H 270.1°. Best body text is #000000 at 6.19:1 contrast (WCAG AA passes).

Color values

HEX#6583FB
RGBrgb(101, 131, 251)
HSLhsl(228, 95%, 69%)
HSVhsv(228, 60%, 98%)
CMYKcmyk(59.8%, 47.8%, 0%, 1.6%)
CIE-LABlab(58.00, 24.80, -63.28)
CIE-LCHlch(58.00, 67.96, 291.40°)
OKLaboklab(64.71% 0.0004 -0.1809)
OKLCHoklch(64.71% 0.181 270.1)
XYZxyz(30.8899, 25.9618, 94.6314)
Luminance0.2596 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6583FB #FBDD65
analogous
#65CEFB #6583FB #9265FB
triadic
#6583FB #FB6583 #83FB65
tetradic
#6583FB #FB65CE #FBDD65 #65FB92
square
#6583FB #FB65CE #FBDD65 #65FB92
split-complementary
#6583FB #FB9265 #CEFB65
monochromatic
#0631E0 #2953F9 #6583FB #A1B3FD #DCE3FE

Accessibility & contrast

On white

3.39
#6583FB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.19
#6583FB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6583FB
6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6583FB#FFFFFF#000000##000000
##6583FB1.003.396.196.19
#FFFFFF3.391.0021.0021.00
#0000006.1921.001.001.00
##0000006.1921.001.001.00

Color blindness preview

Protanopia (red-blind)
#4692FF
Deuteranopia (green-blind)
#2A85F8
Tritanopia (blue-blind)
#009EB3
Achromatopsia (no color)
#8B8B8B

Design tokens & code

CSS
--color: #6583fb;
/* rgb */ color: rgb(101, 131, 251);
/* oklch */ color: oklch(64.7% 0.181 270.1);
Tailwind
colors: {
  custom: {
    50: '#9da6fd',
    500: '#6583fb',
    950: '#000000',
  },
}
SCSS
$custom: #6583fb;
$custom-light: #9da6fd;
$custom-dark: #000000;
JSON
{
  "hex": "#6583fb",
  "rgb": {
    "r": 101,
    "g": 131,
    "b": 251
  },
  "hsl": {
    "h": 228,
    "s": 94.937,
    "l": 69.02
  },
  "oklch": {
    "l": 0.6471,
    "c": 0.18093,
    "h": 270.1
  },
  "luminance": 0.25964
}

Semantic roles & 50–950 ramp

primary
#6583FB
secondary
#F4EBC8
accent
#B800E6
background
#FAFAFF
surface
#F4F4FF
border
#CECED7
text
#0F0F18
muted
#7F7F86

Preview Lab

Preview with #6583FB

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

Preview Lab → · Contrast checker → · Palette generator →

#6583FB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva