#4248CF#4248CF

#4248CF is a mid, highly saturated blue. Relative luminance 0.103; OKLCH L 48.5% C 0.204 H 273.9°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#4248CF
RGB	rgb(66, 72, 207)
HSL	hsl(237, 59%, 54%)
HSV	hsv(237, 68%, 81%)
CMYK	cmyk(68.1%, 65.2%, 0%, 18.8%)
CIE-LAB	lab(38.37, 40.70, -70.39)
CIE-LCH	lch(38.37, 81.31, 300.04°)
OKLab	oklab(48.54% 0.0139 -0.2032)
OKLCH	oklch(48.54% 0.204 273.9)
XYZ	xyz(15.8229, 10.2965, 60.1729)
Luminance	0.1030 (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

#4248CF #CFC942

analogous

#428ECF #4248CF #8242CF

triadic

#4248CF #CF4248 #48CF42

tetradic

#4248CF #CF428E #CFC942 #42CF82

square

#4248CF #CF428E #CFC942 #42CF82

split-complementary

#4248CF #CF8242 #8ECF42

monochromatic

#1F2278 #2B30A9 #4248CF #7377DB #A4A7E8

Accessibility & contrast

On white

6.86

#4248CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#4248CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4248CF

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4248CF	#FFFFFF	#000000	##FFFFFF
##4248CF	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061D3

Deuteranopia (green-blind)

#0054CC

Tritanopia (blue-blind)

#006B85

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4248cf;
/* rgb */ color: rgb(66, 72, 207);
/* oklch */ color: oklch(48.5% 0.204 273.9);

Tailwind

colors: {
  custom: {
    50: '#887bdf',
    500: '#4248cf',
    950: '#000000',
  },
}

SCSS

$custom: #4248cf;
$custom-light: #887bdf;
$custom-dark: #000000;

JSON

{
  "hex": "#4248cf",
  "rgb": {
    "r": 66,
    "g": 72,
    "b": 207
  },
  "hsl": {
    "h": 237.447,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.48536,
    "c": 0.2037,
    "h": 273.9
  },
  "luminance": 0.10298
}

Semantic roles & 50–950 ramp

primary

#4248CF

secondary

#D5D298

accent

#DC45E3

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4248CF

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

Preview Lab → · Contrast checker → · Palette generator →