#3943A3#3943A3

#3943A3 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.3% C 0.154 H 273.6°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#3943A3
RGB	rgb(57, 67, 163)
HSL	hsl(234, 48%, 43%)
HSV	hsv(234, 65%, 64%)
CMYK	cmyk(65%, 58.9%, 0%, 36.1%)
CIE-LAB	lab(32.98, 27.29, -53.28)
CIE-LCH	lch(32.98, 59.86, 297.12°)
OKLab	oklab(43.3% 0.0097 -0.1533)
OKLCH	oklch(43.3% 0.154 273.6)
XYZ	xyz(10.3032, 7.5276, 35.5532)
Luminance	0.0753 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3943A3 #A39939

analogous

#3978A3 #3943A3 #6439A3

triadic

#3943A3 #A33943 #43A339

tetradic

#3943A3 #A33978 #A39939 #39A364

square

#3943A3 #A33978 #A39939 #39A364

split-complementary

#3943A3 #A36439 #78A339

monochromatic

#191E48 #293076 #3943A3 #5560C4 #838AD4

Accessibility & contrast

On white

8.38

#3943A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#3943A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943A3

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943A3	#FFFFFF	#000000	##FFFFFF
##3943A3	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A6

Deuteranopia (green-blind)

#0049A1

Tritanopia (blue-blind)

#005A6C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3943a3;
/* rgb */ color: rgb(57, 67, 163);
/* oklch */ color: oklch(43.3% 0.154 273.6);

Tailwind

colors: {
  custom: {
    50: '#7b77bf',
    500: '#3943a3',
    950: '#000000',
  },
}

SCSS

$custom: #3943a3;
$custom-light: #7b77bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3943a3",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 163
  },
  "hsl": {
    "h": 234.34,
    "s": 48.182,
    "l": 43.137
  },
  "oklch": {
    "l": 0.43299,
    "c": 0.15358,
    "h": 273.6
  },
  "luminance": 0.07529
}

Semantic roles & 50–950 ramp

primary

#3943A3

secondary

#BDB77A

accent

#CB50D8

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3943A3

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

Preview Lab → · Contrast checker → · Palette generator →