#3945A4#3945A4

#3945A4 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.8% C 0.152 H 272.9°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#3945A4
RGB	rgb(57, 69, 164)
HSL	hsl(233, 48%, 43%)
HSV	hsv(233, 65%, 64%)
CMYK	cmyk(65.2%, 57.9%, 0%, 35.7%)
CIE-LAB	lab(33.57, 26.34, -52.91)
CIE-LCH	lch(33.57, 59.10, 296.46°)
OKLab	oklab(43.77% 0.0078 -0.1522)
OKLCH	oklch(43.77% 0.152 272.9)
XYZ	xyz(10.5141, 7.8055, 36.0673)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3945A4 #A49839

analogous

#397AA4 #3945A4 #6239A4

triadic

#3945A4 #A43945 #45A439

tetradic

#3945A4 #A4397A #A49839 #39A462

square

#3945A4 #A4397A #A49839 #39A462

split-complementary

#3945A4 #A46239 #7AA439

monochromatic

#191F49 #293277 #3945A4 #5662C4 #838CD4

Accessibility & contrast

On white

8.20

#3945A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3945A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3945A4

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3945A4	#FFFFFF	#000000	##FFFFFF
##3945A4	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A7

Deuteranopia (green-blind)

#004AA2

Tritanopia (blue-blind)

#005C6D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3945a4;
/* rgb */ color: rgb(57, 69, 164);
/* oklch */ color: oklch(43.8% 0.152 272.9);

Tailwind

colors: {
  custom: {
    50: '#7c78c0',
    500: '#3945a4',
    950: '#000000',
  },
}

SCSS

$custom: #3945a4;
$custom-light: #7c78c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3945a4",
  "rgb": {
    "r": 57,
    "g": 69,
    "b": 164
  },
  "hsl": {
    "h": 233.271,
    "s": 48.416,
    "l": 43.333
  },
  "oklch": {
    "l": 0.43767,
    "c": 0.15239,
    "h": 272.9
  },
  "luminance": 0.07806
}

Semantic roles & 50–950 ramp

primary

#3945A4

secondary

#BEB67B

accent

#C950D8

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3945A4

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

Preview Lab → · Contrast checker → · Palette generator →