#3949CA#3949CA

#3949CA is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.7% C 0.198 H 271.1°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#3949CA
RGB	rgb(57, 73, 202)
HSL	hsl(233, 58%, 51%)
HSV	hsv(233, 72%, 79%)
CMYK	cmyk(71.8%, 63.9%, 0%, 20.8%)
CIE-LAB	lab(37.66, 37.27, -68.67)
CIE-LCH	lch(37.66, 78.13, 298.49°)
OKLab	oklab(47.75% 0.0039 -0.1984)
OKLCH	oklch(47.75% 0.198 271.1)
XYZ	xyz(14.7269, 9.8977, 57.0000)
Luminance	0.0990 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3949CA #CABA39

analogous

#3992CA #3949CA #7139CA

triadic

#3949CA #CA3949 #49CA39

tetradic

#3949CA #CA3992 #CABA39 #39CA71

square

#3949CA #CA3992 #CABA39 #39CA71

split-complementary

#3949CA #CA7139 #92CA39

monochromatic

#1D266C #2A369C #3949CA #6975D7 #9AA2E4

Accessibility & contrast

On white

7.05

#3949CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#3949CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949CA

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949CA	#FFFFFF	#000000	##FFFFFF
##3949CA	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FCE

Deuteranopia (green-blind)

#0052C8

Tritanopia (blue-blind)

#006B83

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3949ca;
/* rgb */ color: rgb(57, 73, 202);
/* oklch */ color: oklch(47.7% 0.198 271.1);

Tailwind

colors: {
  custom: {
    50: '#837cdb',
    500: '#3949ca',
    950: '#000000',
  },
}

SCSS

$custom: #3949ca;
$custom-light: #837cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3949ca",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 202
  },
  "hsl": {
    "h": 233.379,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.47747,
    "c": 0.19847,
    "h": 271.1
  },
  "luminance": 0.09899
}

Semantic roles & 50–950 ramp

primary

#3949CA

secondary

#D0C88F

accent

#D047E1

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3949CA

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

Preview Lab → · Contrast checker → · Palette generator →