#3945BB#3945BB

#3945BB is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.7% C 0.184 H 272.3°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#3945BB
RGB	rgb(57, 69, 187)
HSL	hsl(234, 53%, 48%)
HSV	hsv(234, 70%, 73%)
CMYK	cmyk(69.5%, 63.1%, 0%, 26.7%)
CIE-LAB	lab(35.43, 34.51, -63.56)
CIE-LCH	lch(35.43, 72.33, 298.50°)
OKLab	oklab(45.71% 0.0074 -0.1835)
OKLCH	oklch(45.71% 0.184 272.3)
XYZ	xyz(12.7821, 8.7127, 48.0122)
Luminance	0.0871 (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

#3945BB #BBAF39

analogous

#3986BB #3945BB #6E39BB

triadic

#3945BB #BB3945 #45BB39

tetradic

#3945BB #BB3986 #BBAF39 #39BB6E

square

#3945BB #BB3986 #BBAF39 #39BB6E

split-complementary

#3945BB #BB6E39 #86BB39

monochromatic

#1C225D #2B348C #3945BB #626CCF #9198DD

Accessibility & contrast

On white

7.66

#3945BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3945BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3945BB

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3945BB	#FFFFFF	#000000	##FFFFFF
##3945BB	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BF

Deuteranopia (green-blind)

#004DB9

Tritanopia (blue-blind)

#006379

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3945bb;
/* rgb */ color: rgb(57, 69, 187);
/* oklch */ color: oklch(45.7% 0.184 272.3);

Tailwind

colors: {
  custom: {
    50: '#8078d0',
    500: '#3945bb',
    950: '#000000',
  },
}

SCSS

$custom: #3945bb;
$custom-light: #8078d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3945bb",
  "rgb": {
    "r": 57,
    "g": 69,
    "b": 187
  },
  "hsl": {
    "h": 234.462,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.45714,
    "c": 0.18363,
    "h": 272.3
  },
  "luminance": 0.08714
}

Semantic roles & 50–950 ramp

primary

#3945BB

secondary

#C8C287

accent

#CF4BDD

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #3945BB

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

Preview Lab → · Contrast checker → · Palette generator →