#3949E2#3949E2

#3949E2 is a mid, highly saturated blue. Relative luminance 0.111; OKLCH L 50.0% C 0.229 H 270.5°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#3949E2
RGB	rgb(57, 73, 226)
HSL	hsl(234, 74%, 55%)
HSV	hsv(234, 75%, 89%)
CMYK	cmyk(74.8%, 67.7%, 0%, 11.4%)
CIE-LAB	lab(39.79, 45.56, -78.98)
CIE-LCH	lch(39.79, 91.17, 299.98°)
OKLab	oklab(49.95% 0.002 -0.2285)
OKLCH	oklch(49.95% 0.229 270.5)
XYZ	xyz(17.7927, 11.1240, 73.1462)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3949E2 #E2D239

analogous

#399DE2 #3949E2 #7E39E2

triadic

#3949E2 #E23949 #49E239

tetradic

#3949E2 #E2399D #E2D239 #39E27E

square

#3949E2 #E2399D #E2D239 #39E27E

split-complementary

#3949E2 #E27E39 #9DE239

monochromatic

#15208C #1C2CC1 #3949E2 #6E7AEA #A4ABF2

Accessibility & contrast

On white

6.51

#3949E2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3949E2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3949E2

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949E2	#FFFFFF	#000000	##FFFFFF
##3949E2	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066E7

Deuteranopia (green-blind)

#0056DF

Tritanopia (blue-blind)

#007390

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3949e2;
/* rgb */ color: rgb(57, 73, 226);
/* oklch */ color: oklch(50.0% 0.229 270.5);

Tailwind

colors: {
  custom: {
    50: '#897cec',
    500: '#3949e2',
    950: '#000000',
  },
}

SCSS

$custom: #3949e2;
$custom-light: #897cec;
$custom-dark: #000000;

JSON

{
  "hex": "#3949e2",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 226
  },
  "hsl": {
    "h": 234.32,
    "s": 74.449,
    "l": 55.49
  },
  "oklch": {
    "l": 0.4995,
    "c": 0.22856,
    "h": 270.5
  },
  "luminance": 0.11126
}

Semantic roles & 50–950 ramp

primary

#3949E2

secondary

#DFD898

accent

#DF37F1

background

#F9F7FE

surface

#F2EEFD

border

#CCC9D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #3949E2

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

Preview Lab → · Contrast checker → · Palette generator →