#4247CA#4247CA

#4247CA is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.9% C 0.198 H 274.3°. Best body text is #FFFFFF at 7.03:1 contrast (WCAG AA passes).

Color values

HEX	#4247CA
RGB	rgb(66, 71, 202)
HSL	hsl(238, 56%, 53%)
HSV	hsv(238, 67%, 79%)
CMYK	cmyk(67.3%, 64.9%, 0%, 20.8%)
CIE-LAB	lab(37.71, 39.62, -68.57)
CIE-LCH	lch(37.71, 79.19, 300.02°)
OKLab	oklab(47.93% 0.015 -0.1979)
OKLCH	oklch(47.93% 0.198 274.3)
XYZ	xyz(15.1571, 9.9276, 56.9831)
Luminance	0.0993 (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

#4247CA #CAC542

analogous

#428BCA #4247CA #8142CA

triadic

#4247CA #CA4247 #47CA42

tetradic

#4247CA #CA428B #CAC542 #42CA81

square

#4247CA #CA428B #CAC542 #42CA81

split-complementary

#4247CA #CA8142 #8BCA42

monochromatic

#202372 #2D32A2 #4247CA #7276D7 #A2A4E5

Accessibility & contrast

On white

7.03

#4247CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#4247CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4247CA

7.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4247CA	#FFFFFF	#000000	##FFFFFF
##4247CA	1.00	7.03	2.99	7.03
#FFFFFF	7.03	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FCE

Deuteranopia (green-blind)

#0053C7

Tritanopia (blue-blind)

#006982

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4247ca;
/* rgb */ color: rgb(66, 71, 202);
/* oklch */ color: oklch(47.9% 0.198 274.3);

Tailwind

colors: {
  custom: {
    50: '#877adb',
    500: '#4247ca',
    950: '#000000',
  },
}

SCSS

$custom: #4247ca;
$custom-light: #877adb;
$custom-dark: #000000;

JSON

{
  "hex": "#4247ca",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 202
  },
  "hsl": {
    "h": 237.794,
    "s": 56.198,
    "l": 52.549
  },
  "oklch": {
    "l": 0.47925,
    "c": 0.19848,
    "h": 274.3
  },
  "luminance": 0.09929
}

Semantic roles & 50–950 ramp

primary

#4247CA

secondary

#D1CF96

accent

#DA48DF

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4247CA

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

Preview Lab → · Contrast checker → · Palette generator →