#3949C7#3949C7

#3949C7 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.5% C 0.195 H 271.2°. Best body text is #FFFFFF at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#3949C7
RGB	rgb(57, 73, 199)
HSL	hsl(233, 56%, 50%)
HSV	hsv(233, 71%, 78%)
CMYK	cmyk(71.4%, 63.3%, 0%, 22%)
CIE-LAB	lab(37.40, 36.21, -67.35)
CIE-LCH	lch(37.40, 76.47, 298.27°)
OKLab	oklab(47.48% 0.004 -0.1945)
OKLCH	oklch(47.48% 0.195 271.2)
XYZ	xyz(14.3752, 9.7570, 55.1475)
Luminance	0.0976 (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

#3949C7 #C7B739

analogous

#3990C7 #3949C7 #7039C7

triadic

#3949C7 #C73949 #49C739

tetradic

#3949C7 #C73990 #C7B739 #39C770

square

#3949C7 #C73990 #C7B739 #39C770

split-complementary

#3949C7 #C77039 #90C739

monochromatic

#1D2668 #2B3798 #3949C7 #6975D4 #98A1E2

Accessibility & contrast

On white

7.11

#3949C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#3949C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949C7

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949C7	#FFFFFF	#000000	##FFFFFF
##3949C7	1.00	7.11	2.95	7.11
#FFFFFF	7.11	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FCB

Deuteranopia (green-blind)

#0052C5

Tritanopia (blue-blind)

#006A81

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3949c7;
/* rgb */ color: rgb(57, 73, 199);
/* oklch */ color: oklch(47.5% 0.195 271.2);

Tailwind

colors: {
  custom: {
    50: '#837cd9',
    500: '#3949c7',
    950: '#000000',
  },
}

SCSS

$custom: #3949c7;
$custom-light: #837cd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3949c7",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 199
  },
  "hsl": {
    "h": 233.239,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.4748,
    "c": 0.19459,
    "h": 271.2
  },
  "luminance": 0.09758
}

Semantic roles & 50–950 ramp

primary

#3949C7

secondary

#CEC68E

accent

#CE49DF

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3949C7

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

Preview Lab → · Contrast checker → · Palette generator →