#3945B2#3945B2

#3945B2 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.9% C 0.172 H 272.6°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#3945B2
RGB	rgb(57, 69, 178)
HSL	hsl(234, 51%, 46%)
HSV	hsv(234, 68%, 70%)
CMYK	cmyk(68%, 61.2%, 0%, 30.2%)
CIE-LAB	lab(34.68, 31.33, -59.46)
CIE-LCH	lch(34.68, 67.21, 297.78°)
OKLab	oklab(44.93% 0.0078 -0.1714)
OKLCH	oklch(44.93% 0.172 272.6)
XYZ	xyz(11.8487, 8.3394, 43.0961)
Luminance	0.0834 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3945B2 #B2A639

analogous

#3981B2 #3945B2 #6939B2

triadic

#3945B2 #B23945 #45B239

tetradic

#3945B2 #B23981 #B2A639 #39B269

square

#3945B2 #B23981 #B2A639 #39B269

split-complementary

#3945B2 #B26939 #81B239

monochromatic

#1B2155 #2A3384 #3945B2 #5D68CB #8B93DA

Accessibility & contrast

On white

7.87

#3945B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#3945B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3945B2

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3945B2	#FFFFFF	#000000	##FFFFFF
##3945B2	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B6

Deuteranopia (green-blind)

#004CB0

Tritanopia (blue-blind)

#006075

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3945b2;
/* rgb */ color: rgb(57, 69, 178);
/* oklch */ color: oklch(44.9% 0.172 272.6);

Tailwind

colors: {
  custom: {
    50: '#7e78ca',
    500: '#3945b2',
    950: '#000000',
  },
}

SCSS

$custom: #3945b2;
$custom-light: #7e78ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3945b2",
  "rgb": {
    "r": 57,
    "g": 69,
    "b": 178
  },
  "hsl": {
    "h": 234.05,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.44933,
    "c": 0.17163,
    "h": 272.6
  },
  "luminance": 0.0834
}

Semantic roles & 50–950 ramp

primary

#3945B2

secondary

#C4BE82

accent

#CD4DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3945B2

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

Preview Lab → · Contrast checker → · Palette generator →