#3942B7#3942B7

#3942B7 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.8% C 0.182 H 273.1°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#3942B7
RGB	rgb(57, 66, 183)
HSL	hsl(236, 53%, 47%)
HSV	hsv(236, 69%, 72%)
CMYK	cmyk(68.9%, 63.9%, 0%, 28.2%)
CIE-LAB	lab(34.36, 35.00, -62.94)
CIE-LCH	lch(34.36, 72.02, 299.08°)
OKLab	oklab(44.83% 0.0099 -0.1817)
OKLCH	oklch(44.83% 0.182 273.1)
XYZ	xyz(12.1799, 8.1840, 45.7284)
Luminance	0.0819 (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

#3942B7 #B7AE39

analogous

#3981B7 #3942B7 #6F39B7

triadic

#3942B7 #B73942 #42B739

tetradic

#3942B7 #B73981 #B7AE39 #39B76F

square

#3942B7 #B73981 #B7AE39 #39B76F

split-complementary

#3942B7 #B76F39 #81B739

monochromatic

#1C205A #2A3188 #3942B7 #6068CD #8E94DC

Accessibility & contrast

On white

7.96

#3942B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3942B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3942B7

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3942B7	#FFFFFF	#000000	##FFFFFF
##3942B7	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BB

Deuteranopia (green-blind)

#004BB5

Tritanopia (blue-blind)

#006076

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3942b7;
/* rgb */ color: rgb(57, 66, 183);
/* oklch */ color: oklch(44.8% 0.182 273.1);

Tailwind

colors: {
  custom: {
    50: '#8076ce',
    500: '#3942b7',
    950: '#000000',
  },
}

SCSS

$custom: #3942b7;
$custom-light: #8076ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3942b7",
  "rgb": {
    "r": 57,
    "g": 66,
    "b": 183
  },
  "hsl": {
    "h": 235.714,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.4483,
    "c": 0.18195,
    "h": 273.1
  },
  "luminance": 0.08185
}

Semantic roles & 50–950 ramp

primary

#3942B7

secondary

#C7C285

accent

#D24CDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #3942B7

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

Preview Lab → · Contrast checker → · Palette generator →