#3943A7#3943A7

#3943A7 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.6% C 0.159 H 273.5°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#3943A7
RGB	rgb(57, 67, 167)
HSL	hsl(235, 49%, 44%)
HSV	hsv(235, 66%, 65%)
CMYK	cmyk(65.9%, 59.9%, 0%, 34.5%)
CIE-LAB	lab(33.29, 28.71, -55.17)
CIE-LCH	lch(33.29, 62.19, 297.49°)
OKLab	oklab(43.63% 0.0097 -0.1588)
OKLCH	oklch(43.63% 0.159 273.5)
XYZ	xyz(10.6672, 7.6733, 37.4707)
Luminance	0.0767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3943A7 #A79D39

analogous

#397AA7 #3943A7 #6639A7

triadic

#3943A7 #A73943 #43A739

tetradic

#3943A7 #A7397A #A79D39 #39A766

square

#3943A7 #A7397A #A79D39 #39A766

split-complementary

#3943A7 #A76639 #7AA739

monochromatic

#1A1E4C #293179 #3943A7 #5761C6 #858CD5

Accessibility & contrast

On white

8.28

#3943A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3943A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943A7

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943A7	#FFFFFF	#000000	##FFFFFF
##3943A7	1.00	8.28	2.53	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AA

Deuteranopia (green-blind)

#0049A5

Tritanopia (blue-blind)

#005C6E

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3943a7;
/* rgb */ color: rgb(57, 67, 167);
/* oklch */ color: oklch(43.6% 0.159 273.5);

Tailwind

colors: {
  custom: {
    50: '#7c77c2',
    500: '#3943a7',
    950: '#000000',
  },
}

SCSS

$custom: #3943a7;
$custom-light: #7c77c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3943a7",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 167
  },
  "hsl": {
    "h": 234.545,
    "s": 49.107,
    "l": 43.922
  },
  "oklch": {
    "l": 0.43631,
    "c": 0.15913,
    "h": 273.5
  },
  "luminance": 0.07674
}

Semantic roles & 50–950 ramp

primary

#3943A7

secondary

#BFB97D

accent

#CC4FD9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3943A7

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

Preview Lab → · Contrast checker → · Palette generator →