#3949B2#3949B2

#3949B2 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.7% C 0.167 H 271.5°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#3949B2
RGB	rgb(57, 73, 178)
HSL	hsl(232, 51%, 46%)
HSV	hsv(232, 68%, 70%)
CMYK	cmyk(68%, 59%, 0%, 30.2%)
CIE-LAB	lab(35.69, 28.75, -57.82)
CIE-LCH	lch(35.69, 64.57, 296.44°)
OKLab	oklab(45.68% 0.0045 -0.1666)
OKLCH	oklch(45.68% 0.167 271.5)
XYZ	xyz(12.1031, 8.8482, 43.1809)
Luminance	0.0885 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3949B2 #B2A239

analogous

#3985B2 #3949B2 #6539B2

triadic

#3949B2 #B23949 #49B239

tetradic

#3949B2 #B23985 #B2A239 #39B265

square

#3949B2 #B23985 #B2A239 #39B265

split-complementary

#3949B2 #B26539 #85B239

monochromatic

#1B2355 #2A3684 #3949B2 #5D6CCB #8B96DA

Accessibility & contrast

On white

7.58

#3949B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3949B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949B2

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949B2	#FFFFFF	#000000	##FFFFFF
##3949B2	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB6

Deuteranopia (green-blind)

#004FB0

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3949b2;
/* rgb */ color: rgb(57, 73, 178);
/* oklch */ color: oklch(45.7% 0.167 271.5);

Tailwind

colors: {
  custom: {
    50: '#7e7bca',
    500: '#3949b2',
    950: '#000000',
  },
}

SCSS

$custom: #3949b2;
$custom-light: #7e7bca;
$custom-dark: #000000;

JSON

{
  "hex": "#3949b2",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 178
  },
  "hsl": {
    "h": 232.066,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.45682,
    "c": 0.16663,
    "h": 271.5
  },
  "luminance": 0.08849
}

Semantic roles & 50–950 ramp

primary

#3949B2

secondary

#C4BC82

accent

#C84DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3949B2

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

Preview Lab → · Contrast checker → · Palette generator →