#3940A0#3940A0

#3940A0 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.5% C 0.153 H 274.6°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#3940A0
RGB	rgb(57, 64, 160)
HSL	hsl(236, 47%, 43%)
HSV	hsv(236, 64%, 63%)
CMYK	cmyk(64.4%, 60%, 0%, 37.3%)
CIE-LAB	lab(31.97, 28.18, -53.10)
CIE-LCH	lch(31.97, 60.11, 297.95°)
OKLab	oklab(42.48% 0.0124 -0.1528)
OKLCH	oklch(42.48% 0.153 274.6)
XYZ	xyz(9.8638, 7.0739, 34.0965)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3940A0 #A09939

analogous

#3974A0 #3940A0 #6539A0

triadic

#3940A0 #A03940 #40A039

tetradic

#3940A0 #A03974 #A09939 #39A065

square

#3940A0 #A03974 #A09939 #39A065

split-complementary

#3940A0 #A06539 #74A039

monochromatic

#191C46 #292E73 #3940A0 #545CC2 #8187D2

Accessibility & contrast

On white

8.70

#3940A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3940A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940A0

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940A0	#FFFFFF	#000000	##FFFFFF
##3940A0	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A3

Deuteranopia (green-blind)

#00479E

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3940a0;
/* rgb */ color: rgb(57, 64, 160);
/* oklch */ color: oklch(42.5% 0.153 274.6);

Tailwind

colors: {
  custom: {
    50: '#7b74bd',
    500: '#3940a0',
    950: '#000000',
  },
}

SCSS

$custom: #3940a0;
$custom-light: #7b74bd;
$custom-dark: #000000;

JSON

{
  "hex": "#3940a0",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 160
  },
  "hsl": {
    "h": 235.922,
    "s": 47.465,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4248,
    "c": 0.1533,
    "h": 274.6
  },
  "luminance": 0.07075
}

Semantic roles & 50–950 ramp

primary

#3940A0

secondary

#BCB779

accent

#CE51D7

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3940A0

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

Preview Lab → · Contrast checker → · Palette generator →