#4247B2#4247B2

#4247B2 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.9% C 0.167 H 275.6°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#4247B2
RGB	rgb(66, 71, 178)
HSL	hsl(237, 46%, 48%)
HSV	hsv(237, 63%, 70%)
CMYK	cmyk(62.9%, 60.1%, 0%, 30.2%)
CIE-LAB	lab(35.75, 31.44, -57.70)
CIE-LCH	lch(35.75, 65.71, 298.59°)
OKLab	oklab(45.87% 0.0163 -0.166)
OKLCH	oklch(45.87% 0.167 275.6)
XYZ	xyz(12.5333, 8.8781, 43.1640)
Luminance	0.0888 (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

#4247B2 #B2AD42

analogous

#427FB2 #4247B2 #7542B2

triadic

#4247B2 #B24247 #47B242

tetradic

#4247B2 #B2427F #B2AD42 #42B275

square

#4247B2 #B2427F #B2AD42 #42B275

split-complementary

#4247B2 #B27542 #7FB242

monochromatic

#212359 #313585 #4247B2 #6A6EC8 #9699D8

Accessibility & contrast

On white

7.57

#4247B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#4247B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4247B2

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4247B2	#FFFFFF	#000000	##FFFFFF
##4247B2	1.00	7.57	2.78	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B6

Deuteranopia (green-blind)

#004FB0

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4247b2;
/* rgb */ color: rgb(66, 71, 178);
/* oklch */ color: oklch(45.9% 0.167 275.6);

Tailwind

colors: {
  custom: {
    50: '#827aca',
    500: '#4247b2',
    950: '#000000',
  },
}

SCSS

$custom: #4247b2;
$custom-light: #827aca;
$custom-dark: #000000;

JSON

{
  "hex": "#4247b2",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 178
  },
  "hsl": {
    "h": 237.321,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.45873,
    "c": 0.16681,
    "h": 275.6
  },
  "luminance": 0.08879
}

Semantic roles & 50–950 ramp

primary

#4247B2

secondary

#C4C18C

accent

#D052D6

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #4247B2

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

Preview Lab → · Contrast checker → · Palette generator →