#3943A5#3943A5

#3943A5 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.5% C 0.156 H 273.5°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#3943A5
RGB	rgb(57, 67, 165)
HSL	hsl(234, 49%, 44%)
HSV	hsv(234, 65%, 65%)
CMYK	cmyk(65.5%, 59.4%, 0%, 35.3%)
CIE-LAB	lab(33.14, 28.00, -54.22)
CIE-LCH	lch(33.14, 61.03, 297.31°)
OKLab	oklab(43.46% 0.0097 -0.1561)
OKLCH	oklch(43.46% 0.156 273.5)
XYZ	xyz(10.4838, 7.5999, 36.5045)
Luminance	0.0760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3943A5 #A59B39

analogous

#3979A5 #3943A5 #6539A5

triadic

#3943A5 #A53943 #43A539

tetradic

#3943A5 #A53979 #A59B39 #39A565

square

#3943A5 #A53979 #A59B39 #39A565

split-complementary

#3943A5 #A56539 #79A539

monochromatic

#1A1E4A #293178 #3943A5 #5661C5 #848BD4

Accessibility & contrast

On white

8.33

#3943A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#3943A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943A5

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943A5	#FFFFFF	#000000	##FFFFFF
##3943A5	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A8

Deuteranopia (green-blind)

#0049A3

Tritanopia (blue-blind)

#005B6D

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3943a5;
/* rgb */ color: rgb(57, 67, 165);
/* oklch */ color: oklch(43.5% 0.156 273.5);

Tailwind

colors: {
  custom: {
    50: '#7c77c0',
    500: '#3943a5',
    950: '#000000',
  },
}

SCSS

$custom: #3943a5;
$custom-light: #7c77c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3943a5",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 165
  },
  "hsl": {
    "h": 234.444,
    "s": 48.649,
    "l": 43.529
  },
  "oklch": {
    "l": 0.43464,
    "c": 0.15637,
    "h": 273.5
  },
  "luminance": 0.07601
}

Semantic roles & 50–950 ramp

primary

#3943A5

secondary

#BEB87B

accent

#CC50D8

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3943A5

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

Preview Lab → · Contrast checker → · Palette generator →