#6378EB#6378EB

#6378EB is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.4% C 0.174 H 272.5°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX#6378EB
RGBrgb(99, 120, 235)
HSLhsl(231, 77%, 65%)
HSVhsv(231, 58%, 92%)
CMYKcmyk(57.9%, 48.9%, 0%, 7.8%)
CIE-LABlab(54.11, 25.87, -60.65)
CIE-LCHlch(54.11, 65.94, 293.10°)
OKLaboklab(61.42% 0.0076 -0.1734)
OKLCHoklch(61.42% 0.174 272.5)
XYZxyz(26.8525, 22.0817, 81.4283)
Luminance0.2208 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6378EB #EBD663
analogous
#63BCEB #6378EB #9263EB
triadic
#6378EB #EB6378 #78EB63
tetradic
#6378EB #EB63BC #EBD663 #63EB92
square
#6378EB #EB63BC #EBD663 #63EB92
split-complementary
#6378EB #EB9263 #BCEB63
monochromatic
#1831BC #2D49E4 #6378EB #99A7F2 #CFD6F9

Accessibility & contrast

On white

3.88
#6378EB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.42
#6378EB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6378EB
5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6378EB#FFFFFF#000000##000000
##6378EB1.003.885.425.42
#FFFFFF3.881.0021.0021.00
#0000005.4221.001.001.00
##0000005.4221.001.001.00

Color blindness preview

Protanopia (red-blind)
#3D88EF
Deuteranopia (green-blind)
#257CE9
Tritanopia (blue-blind)
#0092A6
Achromatopsia (no color)
#818181

Design tokens & code

CSS
--color: #6378eb;
/* rgb */ color: rgb(99, 120, 235);
/* oklch */ color: oklch(61.4% 0.174 272.5);
Tailwind
colors: {
  custom: {
    50: '#9a9ef2',
    500: '#6378eb',
    950: '#000000',
  },
}
SCSS
$custom: #6378eb;
$custom-light: #9a9ef2;
$custom-dark: #000000;
JSON
{
  "hex": "#6378eb",
  "rgb": {
    "r": 99,
    "g": 120,
    "b": 235
  },
  "hsl": {
    "h": 230.735,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.6142,
    "c": 0.17356,
    "h": 272.5
  },
  "luminance": 0.22084
}

Semantic roles & 50–950 ramp

primary
#6378EB
secondary
#ECE5BE
accent
#BA0CDA
background
#FAF9FE
surface
#F3F2FD
border
#CDCCD5
text
#0F0E17
muted
#7F7E85

Preview Lab

Preview with #6378EB

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

Preview Lab → · Contrast checker → · Palette generator →

#6378EB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva