#4252CB#4252CB

#4252CB is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.9% C 0.187 H 272.0°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#4252CB
RGB	rgb(66, 82, 203)
HSL	hsl(233, 57%, 53%)
HSV	hsv(233, 67%, 80%)
CMYK	cmyk(67.5%, 59.6%, 0%, 20.4%)
CIE-LAB	lab(40.42, 33.14, -64.73)
CIE-LCH	lch(40.42, 72.72, 297.11°)
OKLab	oklab(49.94% 0.0066 -0.1866)
OKLCH	oklch(49.94% 0.187 272)
XYZ	xyz(16.0399, 11.5031, 57.8634)
Luminance	0.1150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4252CB #CBBB42

analogous

#4296CB #4252CB #7742CB

triadic

#4252CB #CB4252 #52CB42

tetradic

#4252CB #CB4296 #CBBB42 #42CB77

square

#4252CB #CB4296 #CBBB42 #42CB77

split-complementary

#4252CB #CB7742 #96CB42

monochromatic

#202973 #2D3BA3 #4252CB #727ED8 #A2AAE5

Accessibility & contrast

On white

6.36

#4252CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#4252CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4252CB

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4252CB	#FFFFFF	#000000	##FFFFFF
##4252CB	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CF

Deuteranopia (green-blind)

#0059C9

Tritanopia (blue-blind)

#007086

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4252cb;
/* rgb */ color: rgb(66, 82, 203);
/* oklch */ color: oklch(49.9% 0.187 272.0);

Tailwind

colors: {
  custom: {
    50: '#8782dc',
    500: '#4252cb',
    950: '#000000',
  },
}

SCSS

$custom: #4252cb;
$custom-light: #8782dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4252cb",
  "rgb": {
    "r": 66,
    "g": 82,
    "b": 203
  },
  "hsl": {
    "h": 232.993,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.49938,
    "c": 0.18669,
    "h": 272
  },
  "luminance": 0.11505
}

Semantic roles & 50–950 ramp

primary

#4252CB

secondary

#D2CB97

accent

#CE48E0

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #4252CB

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

Preview Lab → · Contrast checker → · Palette generator →