#3942BC#3942BC

#3942BC is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.3% C 0.188 H 272.9°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#3942BC
RGB	rgb(57, 66, 188)
HSL	hsl(236, 53%, 48%)
HSV	hsv(236, 70%, 74%)
CMYK	cmyk(69.7%, 64.9%, 0%, 26.3%)
CIE-LAB	lab(34.79, 36.74, -65.18)
CIE-LCH	lch(34.79, 74.83, 299.41°)
OKLab	oklab(45.28% 0.0095 -0.1882)
OKLCH	oklch(45.28% 0.188 272.9)
XYZ	xyz(12.7096, 8.3959, 48.5180)
Luminance	0.0840 (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

#3942BC #BCB339

analogous

#3983BC #3942BC #7139BC

triadic

#3942BC #BC3942 #42BC39

tetradic

#3942BC #BC3983 #BCB339 #39BC71

square

#3942BC #BC3983 #BCB339 #39BC71

split-complementary

#3942BC #BC7139 #83BC39

monochromatic

#1D215E #2B328D #3942BC #636AD0 #9297DE

Accessibility & contrast

On white

7.84

#3942BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3942BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3942BC

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3942BC	#FFFFFF	#000000	##FFFFFF
##3942BC	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C0

Deuteranopia (green-blind)

#004CBA

Tritanopia (blue-blind)

#006279

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3942bc;
/* rgb */ color: rgb(57, 66, 188);
/* oklch */ color: oklch(45.3% 0.188 272.9);

Tailwind

colors: {
  custom: {
    50: '#8176d1',
    500: '#3942bc',
    950: '#000000',
  },
}

SCSS

$custom: #3942bc;
$custom-light: #8176d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3942bc",
  "rgb": {
    "r": 57,
    "g": 66,
    "b": 188
  },
  "hsl": {
    "h": 235.878,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45278,
    "c": 0.18849,
    "h": 272.9
  },
  "luminance": 0.08397
}

Semantic roles & 50–950 ramp

primary

#3942BC

secondary

#C9C488

accent

#D34BDD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3942BC

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

Preview Lab → · Contrast checker → · Palette generator →