#3948B9#3948B9

#3948B9 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.1% C 0.177 H 271.7°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#3948B9
RGB	rgb(57, 72, 185)
HSL	hsl(233, 53%, 47%)
HSV	hsv(233, 69%, 73%)
CMYK	cmyk(69.2%, 61.1%, 0%, 27.5%)
CIE-LAB	lab(36.00, 31.89, -61.45)
CIE-LCH	lch(36.00, 69.24, 297.43°)
OKLab	oklab(46.08% 0.0053 -0.1773)
OKLCH	oklch(46.08% 0.177 271.7)
XYZ	xyz(12.7587, 9.0061, 46.9555)
Luminance	0.0901 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3948B9 #B9AA39

analogous

#3988B9 #3948B9 #6A39B9

triadic

#3948B9 #B93948 #48B939

tetradic

#3948B9 #B93988 #B9AA39 #39B96A

square

#3948B9 #B93988 #B9AA39 #39B96A

split-complementary

#3948B9 #B96A39 #88B939

monochromatic

#1C245B #2B368A #3948B9 #616ECE #9099DD

Accessibility & contrast

On white

7.50

#3948B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#3948B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3948B9

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3948B9	#FFFFFF	#000000	##FFFFFF
##3948B9	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BBD

Deuteranopia (green-blind)

#004FB7

Tritanopia (blue-blind)

#006479

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3948b9;
/* rgb */ color: rgb(57, 72, 185);
/* oklch */ color: oklch(46.1% 0.177 271.7);

Tailwind

colors: {
  custom: {
    50: '#807bcf',
    500: '#3948b9',
    950: '#000000',
  },
}

SCSS

$custom: #3948b9;
$custom-light: #807bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3948b9",
  "rgb": {
    "r": 57,
    "g": 72,
    "b": 185
  },
  "hsl": {
    "h": 232.969,
    "s": 52.893,
    "l": 47.451
  },
  "oklch": {
    "l": 0.46083,
    "c": 0.17734,
    "h": 271.7
  },
  "luminance": 0.09007
}

Semantic roles & 50–950 ramp

primary

#3948B9

secondary

#C8C086

accent

#CB4BDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3948B9

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

Preview Lab → · Contrast checker → · Palette generator →