#3943BA#3943BA

#3943BA is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.3% C 0.185 H 272.8°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#3943BA
RGB	rgb(57, 67, 186)
HSL	hsl(235, 53%, 48%)
HSV	hsv(235, 69%, 73%)
CMYK	cmyk(69.4%, 64%, 0%, 27.1%)
CIE-LAB	lab(34.86, 35.42, -63.90)
CIE-LCH	lch(34.86, 73.06, 299.00°)
OKLab	oklab(45.27% 0.009 -0.1845)
OKLCH	oklch(45.27% 0.185 272.8)
XYZ	xyz(12.5545, 8.4281, 47.4100)
Luminance	0.0843 (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

#3943BA #BAB039

analogous

#3983BA #3943BA #7039BA

triadic

#3943BA #BA3943 #43BA39

tetradic

#3943BA #BA3983 #BAB039 #39BA70

square

#3943BA #BA3983 #BAB039 #39BA70

split-complementary

#3943BA #BA7039 #83BA39

monochromatic

#1C215C #2B328B #3943BA #616ACF #9096DD

Accessibility & contrast

On white

7.82

#3943BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3943BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943BA

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943BA	#FFFFFF	#000000	##FFFFFF
##3943BA	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BE

Deuteranopia (green-blind)

#004CB8

Tritanopia (blue-blind)

#006278

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3943ba;
/* rgb */ color: rgb(57, 67, 186);
/* oklch */ color: oklch(45.3% 0.185 272.8);

Tailwind

colors: {
  custom: {
    50: '#8077d0',
    500: '#3943ba',
    950: '#000000',
  },
}

SCSS

$custom: #3943ba;
$custom-light: #8077d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3943ba",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 186
  },
  "hsl": {
    "h": 235.349,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.45272,
    "c": 0.1847,
    "h": 272.8
  },
  "luminance": 0.08429
}

Semantic roles & 50–950 ramp

primary

#3943BA

secondary

#C8C387

accent

#D14BDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3943BA

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

Preview Lab → · Contrast checker → · Palette generator →