#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
RGB	rgb(66, 72, 203)
HSL	hsl(237, 57%, 53%)
HSV	hsv(237, 67%, 80%)
CMYK	cmyk(67.5%, 64.5%, 0%, 20.4%)
CIE-LAB	lab(38.03, 39.35, -68.63)
CIE-LCH	lch(38.03, 79.11, 299.83°)
OKLab	oklab(48.18% 0.0142 -0.1981)
OKLCH	oklch(48.18% 0.199 274.1)
XYZ	xyz(15.3400, 10.1034, 57.6301)
Luminance	0.1011 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

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
##4248CB	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

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 →