#6388F9#6388F9

#6388F9 is a light, vivid blue. Relative luminance 0.271; OKLCH L 65.5% C 0.173 H 267.8°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX#6388F9
RGBrgb(99, 136, 249)
HSLhsl(225, 93%, 68%)
HSVhsv(225, 60%, 98%)
CMYKcmyk(60.2%, 45.4%, 0%, 2.4%)
CIE-LABlab(59.06, 20.78, -60.47)
CIE-LCHlch(59.06, 63.94, 288.96°)
OKLaboklab(65.45% -0.0066 -0.1727)
OKLCHoklch(65.45% 0.173 267.8)
XYZxyz(31.0428, 27.0979, 93.1987)
Luminance0.2710 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6388F9 #F9D463
analogous
#63D3F9 #6388F9 #8963F9
triadic
#6388F9 #F96388 #88F963
tetradic
#6388F9 #F963D3 #F9D463 #63F989
square
#6388F9 #F963D3 #F9D463 #63F989
split-complementary
#6388F9 #F98963 #D3F963
monochromatic
#083CD9 #285BF7 #6388F9 #9EB5FB #D9E2FE

Accessibility & contrast

On white

3.27
#6388F9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.42
#6388F9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6388F9
6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6388F9#FFFFFF#000000##000000
##6388F91.003.276.426.42
#FFFFFF3.271.0021.0021.00
#0000006.4221.001.001.00
##0000006.4221.001.001.00

Color blindness preview

Protanopia (red-blind)
#5295FD
Deuteranopia (green-blind)
#3A88F7
Tritanopia (blue-blind)
#00A2B4
Achromatopsia (no color)
#8E8E8E

Design tokens & code

CSS
--color: #6388f9;
/* rgb */ color: rgb(99, 136, 249);
/* oklch */ color: oklch(65.5% 0.173 267.8);
Tailwind
colors: {
  custom: {
    50: '#9baafc',
    500: '#6388f9',
    950: '#000000',
  },
}
SCSS
$custom: #6388f9;
$custom-light: #9baafc;
$custom-dark: #000000;
JSON
{
  "hex": "#6388f9",
  "rgb": {
    "r": 99,
    "g": 136,
    "b": 249
  },
  "hsl": {
    "h": 225.2,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.65454,
    "c": 0.1728,
    "h": 267.8
  },
  "luminance": 0.27101
}

Semantic roles & 50–950 ramp

primary
#6388F9
secondary
#F3E7C5
accent
#AD00E6
background
#FAFAFF
surface
#F4F4FF
border
#CECED7
text
#0F1017
muted
#7F7F85

Preview Lab

Preview with #6388F9

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

Preview Lab → · Contrast checker → · Palette generator →

#6388F9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva