#6364EB#6364EB

#6364EB is a mid, vivid blue. Relative luminance 0.178; OKLCH L 57.7% C 0.199 H 277.9°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX#6364EB
RGBrgb(99, 100, 235)
HSLhsl(240, 77%, 65%)
HSVhsv(240, 58%, 92%)
CMYKcmyk(57.9%, 57.4%, 0%, 7.8%)
CIE-LABlab(49.21, 37.98, -68.57)
CIE-LCHlch(49.21, 78.39, 298.98°)
OKLaboklab(57.74% 0.0272 -0.1969)
OKLCHoklch(57.74% 0.199 277.9)
XYZxyz(24.6934, 17.7634, 80.7086)
Luminance0.1777 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6364EB #EBEA63
analogous
#63A8EB #6364EB #A663EB
triadic
#6364EB #EB6364 #64EB63
tetradic
#6364EB #EB63A8 #EBEA63 #63EBA6
square
#6364EB #EB63A8 #EBEA63 #63EBA6
split-complementary
#6364EB #EBA663 #A8EB63
monochromatic
#1819BC #2D2EE4 #6364EB #999AF2 #CFD0F9

Accessibility & contrast

On white

4.61
#6364EB on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.55
#6364EB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #6364EB
4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6364EB#FFFFFF#000000##FFFFFF
##6364EB1.004.614.554.61
#FFFFFF4.611.0021.001.00
#0000004.5521.001.0021.00
##FFFFFF4.611.0021.001.00

Color blindness preview

Protanopia (red-blind)
#007BF0
Deuteranopia (green-blind)
#006FE8
Tritanopia (blue-blind)
#00849E
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #6364eb;
/* rgb */ color: rgb(99, 100, 235);
/* oklch */ color: oklch(57.7% 0.199 277.9);
Tailwind
colors: {
  custom: {
    50: '#9b90f2',
    500: '#6364eb',
    950: '#000000',
  },
}
SCSS
$custom: #6364eb;
$custom-light: #9b90f2;
$custom-dark: #000000;
JSON
{
  "hex": "#6364eb",
  "rgb": {
    "r": 99,
    "g": 100,
    "b": 235
  },
  "hsl": {
    "h": 239.559,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.57744,
    "c": 0.19875,
    "h": 277.9
  },
  "luminance": 0.17765
}

Semantic roles & 50–950 ramp

primary
#6364EB
secondary
#ECEBBE
accent
#D80CDA
background
#FAF8FE
surface
#F4F0FD
border
#CECBD5
text
#0F0C17
muted
#7F7D85

Preview Lab

Preview with #6364EB

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

Preview Lab → · Contrast checker → · Palette generator →

#6364EB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva