#4248CB#4248CB

#4248CB is a mid, vivid blue. Relative luminance 0.101; OKLCH L 48.2% C 0.199 H 274.1°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX#4248CB
RGBrgb(66, 72, 203)
HSLhsl(237, 57%, 53%)
HSVhsv(237, 67%, 80%)
CMYKcmyk(67.5%, 64.5%, 0%, 20.4%)
CIE-LABlab(38.03, 39.35, -68.63)
CIE-LCHlch(38.03, 79.11, 299.83°)
OKLaboklab(48.18% 0.0142 -0.1981)
OKLCHoklch(48.18% 0.199 274.1)
XYZxyz(15.3400, 10.1034, 57.6301)
Luminance0.1011 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4248CB #CBC542
analogous
#428DCB #4248CB #8042CB
triadic
#4248CB #CB4248 #48CB42
tetradic
#4248CB #CB428D #CBC542 #42CB80
square
#4248CB #CB428D #CBC542 #42CB80
split-complementary
#4248CB #CB8042 #8DCB42
monochromatic
#202373 #2D32A3 #4248CB #7276D8 #A2A5E5

Accessibility & contrast

On white

6.95
#4248CB on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.02
#4248CB on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4248CB
6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4248CB#FFFFFF#000000##FFFFFF
##4248CB1.006.953.026.95
#FFFFFF6.951.0021.001.00
#0000003.0221.001.0021.00
##FFFFFF6.951.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0060CF
Deuteranopia (green-blind)
#0053C8
Tritanopia (blue-blind)
#006A83
Achromatopsia (no color)
#595959

Design tokens & code

CSS
--color: #4248cb;
/* rgb */ color: rgb(66, 72, 203);
/* oklch */ color: oklch(48.2% 0.199 274.1);
Tailwind
colors: {
  custom: {
    50: '#877bdc',
    500: '#4248cb',
    950: '#000000',
  },
}
SCSS
$custom: #4248cb;
$custom-light: #877bdc;
$custom-dark: #000000;
JSON
{
  "hex": "#4248cb",
  "rgb": {
    "r": 66,
    "g": 72,
    "b": 203
  },
  "hsl": {
    "h": 237.372,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.48181,
    "c": 0.1986,
    "h": 274.1
  },
  "luminance": 0.10105
}

Semantic roles & 50–950 ramp

primary
#4248CB
secondary
#D2CF97
accent
#D948E0
background
#F9F7FD
surface
#F1EEFB
border
#CBC9D4
text
#0D0915
muted
#7E7B83

Preview Lab

Preview with #4248CB

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

Preview Lab → · Contrast checker → · Palette generator →

#4248CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva