#3943BC#3943BC

#3943BC is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.5% C 0.187 H 272.7°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#3943BC
RGB	rgb(57, 67, 188)
HSL	hsl(235, 53%, 48%)
HSV	hsv(235, 70%, 74%)
CMYK	cmyk(69.7%, 64.4%, 0%, 26.3%)
CIE-LAB	lab(35.03, 36.12, -64.80)
CIE-LCH	lch(35.03, 74.18, 299.13°)
OKLab	oklab(45.45% 0.0088 -0.1871)
OKLCH	oklch(45.45% 0.187 272.7)
XYZ	xyz(12.7686, 8.5138, 48.5376)
Luminance	0.0852 (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

#3943BC #BCB239

analogous

#3984BC #3943BC #7039BC

triadic

#3943BC #BC3943 #43BC39

tetradic

#3943BC #BC3984 #BCB239 #39BC70

square

#3943BC #BC3984 #BCB239 #39BC70

split-complementary

#3943BC #BC7039 #84BC39

monochromatic

#1D225E #2B328D #3943BC #636BD0 #9297DE

Accessibility & contrast

On white

7.77

#3943BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3943BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943BC

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943BC	#FFFFFF	#000000	##FFFFFF
##3943BC	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	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: #3943bc;
/* rgb */ color: rgb(57, 67, 188);
/* oklch */ color: oklch(45.5% 0.187 272.7);

Tailwind

colors: {
  custom: {
    50: '#8177d1',
    500: '#3943bc',
    950: '#000000',
  },
}

SCSS

$custom: #3943bc;
$custom-light: #8177d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3943bc",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 188
  },
  "hsl": {
    "h": 235.42,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45451,
    "c": 0.18732,
    "h": 272.7
  },
  "luminance": 0.08515
}

Semantic roles & 50–950 ramp

primary

#3943BC

secondary

#C9C488

accent

#D24BDD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3943BC

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

Preview Lab → · Contrast checker → · Palette generator →