#4052BB#4052BB

#4052BB is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.5% C 0.166 H 271.5°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#4052BB
RGB	rgb(64, 82, 187)
HSL	hsl(231, 49%, 49%)
HSV	hsv(231, 66%, 73%)
CMYK	cmyk(65.8%, 56.1%, 0%, 26.7%)
CIE-LAB	lab(39.09, 27.22, -57.58)
CIE-LCH	lch(39.09, 63.69, 295.30°)
OKLab	oklab(48.54% 0.0043 -0.1656)
OKLCH	oklch(48.54% 0.166 271.5)
XYZ	xyz(14.0983, 10.7112, 48.3286)
Luminance	0.1071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4052BB #BBA940

analogous

#408FBB #4052BB #6C40BB

triadic

#4052BB #BB4052 #52BB40

tetradic

#4052BB #BB408F #BBA940 #40BB6C

square

#4052BB #BB408F #BBA940 #40BB6C

split-complementary

#4052BB #BB6C40 #8FBB40

monochromatic

#212A60 #303E8D #4052BB #6C7ACD #99A3DC

Accessibility & contrast

On white

6.68

#4052BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#4052BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4052BB

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4052BB	#FFFFFF	#000000	##FFFFFF
##4052BB	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0057B9

Tritanopia (blue-blind)

#006B7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4052bb;
/* rgb */ color: rgb(64, 82, 187);
/* oklch */ color: oklch(48.5% 0.166 271.5);

Tailwind

colors: {
  custom: {
    50: '#8282d0',
    500: '#4052bb',
    950: '#000000',
  },
}

SCSS

$custom: #4052bb;
$custom-light: #8282d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4052bb",
  "rgb": {
    "r": 64,
    "g": 82,
    "b": 187
  },
  "hsl": {
    "h": 231.22,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.4854,
    "c": 0.16566,
    "h": 271.5
  },
  "luminance": 0.10712
}

Semantic roles & 50–950 ramp

primary

#4052BB

secondary

#C8C08F

accent

#C44FD9

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4052BB

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

Preview Lab → · Contrast checker → · Palette generator →