#3940DA#3940DA

#3940DA is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 47.8% C 0.228 H 271.9°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#3940DA
RGB	rgb(57, 64, 218)
HSL	hsl(237, 69%, 54%)
HSV	hsv(237, 74%, 85%)
CMYK	cmyk(73.9%, 70.6%, 0%, 14.5%)
CIE-LAB	lab(37.11, 48.14, -78.81)
CIE-LCH	lch(37.11, 92.35, 301.42°)
OKLab	oklab(47.79% 0.0075 -0.2281)
OKLCH	oklch(47.79% 0.228 271.9)
XYZ	xyz(16.1714, 9.5969, 67.3162)
Luminance	0.0960 (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

#3940DA #DAD339

analogous

#3991DA #3940DA #8339DA

triadic

#3940DA #DA3940 #40DA39

tetradic

#3940DA #DA3991 #DAD339 #39DA83

square

#3940DA #DA3991 #DAD339 #39DA83

split-complementary

#3940DA #DA8339 #91DA39

monochromatic

#181D81 #2228B4 #3940DA #6D72E4 #A0A3ED

Accessibility & contrast

On white

7.19

#3940DA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#3940DA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940DA

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940DA	#FFFFFF	#000000	##FFFFFF
##3940DA	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FDF

Deuteranopia (green-blind)

#004FD7

Tritanopia (blue-blind)

#006B89

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3940da;
/* rgb */ color: rgb(57, 64, 218);
/* oklch */ color: oklch(47.8% 0.228 271.9);

Tailwind

colors: {
  custom: {
    50: '#8876e7',
    500: '#3940da',
    950: '#000000',
  },
}

SCSS

$custom: #3940da;
$custom-light: #8876e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3940da",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 218
  },
  "hsl": {
    "h": 237.391,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.47791,
    "c": 0.2282,
    "h": 271.9
  },
  "luminance": 0.09599
}

Semantic roles & 50–950 ramp

primary

#3940DA

secondary

#DAD795

accent

#E43CEB

background

#F9F7FE

surface

#F1EDFD

border

#CBC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3940DA

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

Preview Lab → · Contrast checker → · Palette generator →