#3943C0#3943C0

#3943C0 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.8% C 0.193 H 272.5°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#3943C0
RGB	rgb(57, 67, 192)
HSL	hsl(236, 54%, 49%)
HSV	hsv(236, 70%, 75%)
CMYK	cmyk(70.3%, 65.1%, 0%, 24.7%)
CIE-LAB	lab(35.38, 37.51, -66.58)
CIE-LCH	lch(35.38, 76.42, 299.40°)
OKLab	oklab(45.81% 0.0086 -0.1923)
OKLCH	oklch(45.81% 0.193 272.5)
XYZ	xyz(13.2057, 8.6887, 50.8401)
Luminance	0.0869 (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

#3943C0 #C0B639

analogous

#3987C0 #3943C0 #7339C0

triadic

#3943C0 #C03943 #43C039

tetradic

#3943C0 #C03987 #C0B639 #39C073

square

#3943C0 #C03987 #C0B639 #39C073

split-complementary

#3943C0 #C07339 #87C039

monochromatic

#1D2262 #2B3391 #3943C0 #656DD1 #949ADF

Accessibility & contrast

On white

7.67

#3943C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3943C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943C0

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943C0	#FFFFFF	#000000	##FFFFFF
##3943C0	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC4

Deuteranopia (green-blind)

#004DBE

Tritanopia (blue-blind)

#00647B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3943c0;
/* rgb */ color: rgb(57, 67, 192);
/* oklch */ color: oklch(45.8% 0.193 272.5);

Tailwind

colors: {
  custom: {
    50: '#8277d4',
    500: '#3943c0',
    950: '#000000',
  },
}

SCSS

$custom: #3943c0;
$custom-light: #8277d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3943c0",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 192
  },
  "hsl": {
    "h": 235.556,
    "s": 54.217,
    "l": 48.824
  },
  "oklch": {
    "l": 0.45811,
    "c": 0.19251,
    "h": 272.5
  },
  "luminance": 0.0869
}

Semantic roles & 50–950 ramp

primary

#3943C0

secondary

#CBC68A

accent

#D34ADE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3943C0

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

Preview Lab → · Contrast checker → · Palette generator →