#6551F3#6551F3

#6551F3 is a mid, highly saturated blue. Relative luminance 0.151; OKLCH L 55.5% C 0.231 H 281.4°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX#6551F3
RGBrgb(101, 81, 243)
HSLhsl(247, 87%, 64%)
HSVhsv(247, 67%, 95%)
CMYKcmyk(58.4%, 66.7%, 0%, 4.7%)
CIE-LABlab(45.80, 51.75, -78.61)
CIE-LCHlch(45.80, 94.12, 303.36°)
OKLaboklab(55.48% 0.0456 -0.2264)
OKLCHoklch(55.48% 0.231 281.4)
XYZxyz(24.4819, 15.1209, 86.4052)
Luminance0.1512 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6551F3 #DFF351
analogous
#518EF3 #6551F3 #B651F3
triadic
#6551F3 #F36551 #51F365
tetradic
#6551F3 #F3518E #DFF351 #51F3B6
square
#6551F3 #F3518E #DFF351 #51F3B6
split-complementary
#6551F3 #F3B651 #8EF351
monochromatic
#230DBD #3218EF #6551F3 #988AF7 #CAC4FB

Accessibility & contrast

On white

5.22
#6551F3 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.02
#6551F3 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6551F3
5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6551F3#FFFFFF#000000##FFFFFF
##6551F31.005.224.025.22
#FFFFFF5.221.0021.001.00
#0000004.0221.001.0021.00
##FFFFFF5.221.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0072F8
Deuteranopia (green-blind)
#0067F0
Tritanopia (blue-blind)
#007B9B
Achromatopsia (no color)
#6C6C6C

Design tokens & code

CSS
--color: #6551f3;
/* rgb */ color: rgb(101, 81, 243);
/* oklch */ color: oklch(55.5% 0.231 281.4);
Tailwind
colors: {
  custom: {
    50: '#9f83f8',
    500: '#6551f3',
    950: '#000000',
  },
}
SCSS
$custom: #6551f3;
$custom-light: #9f83f8;
$custom-dark: #000000;
JSON
{
  "hex": "#6551f3",
  "rgb": {
    "r": 101,
    "g": 81,
    "b": 243
  },
  "hsl": {
    "h": 247.407,
    "s": 87.097,
    "l": 63.529
  },
  "oklch": {
    "l": 0.55481,
    "c": 0.23092,
    "h": 281.4
  },
  "luminance": 0.15123
}

Semantic roles & 50–950 ramp

primary
#6551F3
secondary
#E6EDB3
accent
#E402C8
background
#FAF8FF
surface
#F4EFFF
border
#CECAD7
text
#100B17
muted
#7F7C85

Preview Lab

Preview with #6551F3

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

Preview Lab → · Contrast checker → · Palette generator →

#6551F3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva