#4247C8#4247C8

#4247C8 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.7% C 0.196 H 274.4°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#4247C8
RGB	rgb(66, 71, 200)
HSL	hsl(238, 55%, 52%)
HSV	hsv(238, 67%, 78%)
CMYK	cmyk(67%, 64.5%, 0%, 21.6%)
CIE-LAB	lab(37.54, 38.95, -67.68)
CIE-LCH	lch(37.54, 78.09, 299.92°)
OKLab	oklab(47.75% 0.0152 -0.1953)
OKLCH	oklch(47.75% 0.196 274.4)
XYZ	xyz(14.9219, 9.8335, 55.7441)
Luminance	0.0984 (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

#4247C8 #C8C342

analogous

#428AC8 #4247C8 #8042C8

triadic

#4247C8 #C84247 #47C842

tetradic

#4247C8 #C8428A #C8C342 #42C880

square

#4247C8 #C8428A #C8C342 #42C880

split-complementary

#4247C8 #C88042 #8AC842

monochromatic

#20236F #2E329F #4247C8 #7175D6 #A1A3E4

Accessibility & contrast

On white

7.08

#4247C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#4247C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4247C8

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4247C8	#FFFFFF	#000000	##FFFFFF
##4247C8	1.00	7.08	2.97	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECC

Deuteranopia (green-blind)

#0052C6

Tritanopia (blue-blind)

#006881

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #4247c8;
/* rgb */ color: rgb(66, 71, 200);
/* oklch */ color: oklch(47.7% 0.196 274.4);

Tailwind

colors: {
  custom: {
    50: '#877ada',
    500: '#4247c8',
    950: '#000000',
  },
}

SCSS

$custom: #4247c8;
$custom-light: #877ada;
$custom-dark: #000000;

JSON

{
  "hex": "#4247c8",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 200
  },
  "hsl": {
    "h": 237.761,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.47748,
    "c": 0.19591,
    "h": 274.4
  },
  "luminance": 0.09835
}

Semantic roles & 50–950 ramp

primary

#4247C8

secondary

#D0CE96

accent

#D94ADE

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4247C8

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

Preview Lab → · Contrast checker → · Palette generator →