#4247CB#4247CB

#4247CB is a mid, vivid blue. Relative luminance 0.100; OKLCH L 48.0% C 0.200 H 274.3°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#4247CB
RGB	rgb(66, 71, 203)
HSL	hsl(238, 57%, 53%)
HSV	hsv(238, 67%, 80%)
CMYK	cmyk(67.5%, 65%, 0%, 20.4%)
CIE-LAB	lab(37.80, 39.96, -69.01)
CIE-LCH	lch(37.80, 79.74, 300.08°)
OKLab	oklab(48.01% 0.0149 -0.1992)
OKLCH	oklch(48.01% 0.2 274.3)
XYZ	xyz(15.2759, 9.9751, 57.6087)
Luminance	0.0998 (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

#4247CB #CBC642

analogous

#428CCB #4247CB #8142CB

triadic

#4247CB #CB4247 #47CB42

tetradic

#4247CB #CB428C #CBC642 #42CB81

square

#4247CB #CB428C #CBC642 #42CB81

split-complementary

#4247CB #CB8142 #8CCB42

monochromatic

#202373 #2D31A3 #4247CB #7276D8 #A2A4E5

Accessibility & contrast

On white

7.01

#4247CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#4247CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4247CB

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4247CB	#FFFFFF	#000000	##FFFFFF
##4247CB	1.00	7.01	3.00	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FCF

Deuteranopia (green-blind)

#0053C8

Tritanopia (blue-blind)

#006983

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4247cb;
/* rgb */ color: rgb(66, 71, 203);
/* oklch */ color: oklch(48.0% 0.200 274.3);

Tailwind

colors: {
  custom: {
    50: '#877adc',
    500: '#4247cb',
    950: '#000000',
  },
}

SCSS

$custom: #4247cb;
$custom-light: #877adc;
$custom-dark: #000000;

JSON

{
  "hex": "#4247cb",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 203
  },
  "hsl": {
    "h": 237.81,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.48014,
    "c": 0.19976,
    "h": 274.3
  },
  "luminance": 0.09977
}

Semantic roles & 50–950 ramp

primary

#4247CB

secondary

#D2D097

accent

#DB48E0

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4247CB

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

Preview Lab → · Contrast checker → · Palette generator →