#4249CB#4249CB

#4249CB is a mid, vivid blue. Relative luminance 0.102; OKLCH L 48.4% C 0.197 H 273.9°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#4249CB
RGB	rgb(66, 73, 203)
HSL	hsl(237, 57%, 53%)
HSV	hsv(237, 67%, 80%)
CMYK	cmyk(67.5%, 64%, 0%, 20.4%)
CIE-LAB	lab(38.26, 38.74, -68.25)
CIE-LCH	lch(38.26, 78.48, 299.58°)
OKLab	oklab(48.35% 0.0135 -0.197)
OKLCH	oklch(48.35% 0.197 273.9)
XYZ	xyz(15.4052, 10.2337, 57.6518)
Luminance	0.1023 (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

#4249CB #CBC442

analogous

#428ECB #4249CB #7F42CB

triadic

#4249CB #CB4249 #49CB42

tetradic

#4249CB #CB428E #CBC442 #42CB7F

square

#4249CB #CB428E #CBC442 #42CB7F

split-complementary

#4249CB #CB7F42 #8ECB42

monochromatic

#202473 #2D33A3 #4249CB #7277D8 #A2A5E5

Accessibility & contrast

On white

6.89

#4249CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#4249CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4249CB

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4249CB	#FFFFFF	#000000	##FFFFFF
##4249CB	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060CF

Deuteranopia (green-blind)

#0054C9

Tritanopia (blue-blind)

#006B83

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4249cb;
/* rgb */ color: rgb(66, 73, 203);
/* oklch */ color: oklch(48.4% 0.197 273.9);

Tailwind

colors: {
  custom: {
    50: '#877cdc',
    500: '#4249cb',
    950: '#000000',
  },
}

SCSS

$custom: #4249cb;
$custom-light: #877cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#4249cb",
  "rgb": {
    "r": 66,
    "g": 73,
    "b": 203
  },
  "hsl": {
    "h": 236.934,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.4835,
    "c": 0.19744,
    "h": 273.9
  },
  "luminance": 0.10235
}

Semantic roles & 50–950 ramp

primary

#4249CB

secondary

#D2CF97

accent

#D848E0

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4249CB

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

Preview Lab → · Contrast checker → · Palette generator →