#3945B0#3945B0

#3945B0 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.8% C 0.169 H 272.7°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#3945B0
RGB	rgb(57, 69, 176)
HSL	hsl(234, 51%, 46%)
HSV	hsv(234, 68%, 69%)
CMYK	cmyk(67.6%, 60.8%, 0%, 31%)
CIE-LAB	lab(34.52, 30.62, -58.54)
CIE-LCH	lch(34.52, 66.06, 297.61°)
OKLab	oklab(44.76% 0.0078 -0.1687)
OKLCH	oklch(44.76% 0.169 272.7)
XYZ	xyz(11.6493, 8.2596, 42.0462)
Luminance	0.0826 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.98

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3945B0 #B0A439

analogous

#3980B0 #3945B0 #6939B0

triadic

#3945B0 #B03945 #45B039

tetradic

#3945B0 #B03980 #B0A439 #39B069

square

#3945B0 #B03980 #B0A439 #39B069

split-complementary

#3945B0 #B06939 #80B039

monochromatic

#1B2154 #2A3382 #3945B0 #5C67CA #8A92D9

Accessibility & contrast

On white

7.92

#3945B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3945B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3945B0

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3945B0	#FFFFFF	#000000	##FFFFFF
##3945B0	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B4

Deuteranopia (green-blind)

#004CAE

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3945b0;
/* rgb */ color: rgb(57, 69, 176);
/* oklch */ color: oklch(44.8% 0.169 272.7);

Tailwind

colors: {
  custom: {
    50: '#7e78c8',
    500: '#3945b0',
    950: '#000000',
  },
}

SCSS

$custom: #3945b0;
$custom-light: #7e78c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3945b0",
  "rgb": {
    "r": 57,
    "g": 69,
    "b": 176
  },
  "hsl": {
    "h": 233.95,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.44763,
    "c": 0.16892,
    "h": 272.7
  },
  "luminance": 0.08261
}

Semantic roles & 50–950 ramp

primary

#3945B0

secondary

#C4BD81

accent

#CC4DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3945B0

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

Preview Lab → · Contrast checker → · Palette generator →