#3949B0#3949B0

#3949B0 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.5% C 0.164 H 271.6°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#3949B0
RGB	rgb(57, 73, 176)
HSL	hsl(232, 51%, 46%)
HSV	hsv(232, 68%, 69%)
CMYK	cmyk(67.6%, 58.5%, 0%, 31%)
CIE-LAB	lab(35.53, 28.03, -56.89)
CIE-LCH	lch(35.53, 63.42, 296.23°)
OKLab	oklab(45.52% 0.0045 -0.1638)
OKLCH	oklch(45.52% 0.164 271.6)
XYZ	xyz(11.9037, 8.7684, 42.1310)
Luminance	0.0877 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3949B0 #B0A039

analogous

#3984B0 #3949B0 #6439B0

triadic

#3949B0 #B03949 #49B039

tetradic

#3949B0 #B03984 #B0A039 #39B064

square

#3949B0 #B03984 #B0A039 #39B064

split-complementary

#3949B0 #B06439 #84B039

monochromatic

#1B2354 #2A3682 #3949B0 #5C6BCA #8A95D9

Accessibility & contrast

On white

7.63

#3949B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3949B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949B0

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949B0	#FFFFFF	#000000	##FFFFFF
##3949B0	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B3

Deuteranopia (green-blind)

#004EAE

Tritanopia (blue-blind)

#006275

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3949b0;
/* rgb */ color: rgb(57, 73, 176);
/* oklch */ color: oklch(45.5% 0.164 271.6);

Tailwind

colors: {
  custom: {
    50: '#7e7bc8',
    500: '#3949b0',
    950: '#000000',
  },
}

SCSS

$custom: #3949b0;
$custom-light: #7e7bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3949b0",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 176
  },
  "hsl": {
    "h": 231.933,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.45517,
    "c": 0.16389,
    "h": 271.6
  },
  "luminance": 0.0877
}

Semantic roles & 50–950 ramp

primary

#3949B0

secondary

#C4BB81

accent

#C84DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3949B0

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

Preview Lab → · Contrast checker → · Palette generator →