#3943BF#3943BF

#3943BF is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.7% C 0.191 H 272.6°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#3943BF
RGB	rgb(57, 67, 191)
HSL	hsl(236, 54%, 49%)
HSV	hsv(236, 70%, 75%)
CMYK	cmyk(70.2%, 64.9%, 0%, 25.1%)
CIE-LAB	lab(35.29, 37.16, -66.13)
CIE-LCH	lch(35.29, 75.86, 299.33°)
OKLab	oklab(45.72% 0.0086 -0.191)
OKLCH	oklch(45.72% 0.191 272.6)
XYZ	xyz(13.0953, 8.6445, 50.2585)
Luminance	0.0865 (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

#3943BF #BFB539

analogous

#3986BF #3943BF #7239BF

triadic

#3943BF #BF3943 #43BF39

tetradic

#3943BF #BF3986 #BFB539 #39BF72

square

#3943BF #BF3986 #BFB539 #39BF72

split-complementary

#3943BF #BF7239 #86BF39

monochromatic

#1D2261 #2B3290 #3943BF #646CD1 #9399DF

Accessibility & contrast

On white

7.69

#3943BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3943BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943BF

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943BF	#FFFFFF	#000000	##FFFFFF
##3943BF	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C3

Deuteranopia (green-blind)

#004DBD

Tritanopia (blue-blind)

#00637B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3943bf;
/* rgb */ color: rgb(57, 67, 191);
/* oklch */ color: oklch(45.7% 0.191 272.6);

Tailwind

colors: {
  custom: {
    50: '#8177d3',
    500: '#3943bf',
    950: '#000000',
  },
}

SCSS

$custom: #3943bf;
$custom-light: #8177d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3943bf",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 191
  },
  "hsl": {
    "h": 235.522,
    "s": 54.032,
    "l": 48.627
  },
  "oklch": {
    "l": 0.45721,
    "c": 0.19121,
    "h": 272.6
  },
  "luminance": 0.08646
}

Semantic roles & 50–950 ramp

primary

#3943BF

secondary

#CAC58A

accent

#D24ADD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3943BF

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

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