#3945A7#3945A7

#3945A7 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.0% C 0.157 H 272.9°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#3945A7
RGB	rgb(57, 69, 167)
HSL	hsl(233, 49%, 44%)
HSV	hsv(233, 66%, 65%)
CMYK	cmyk(65.9%, 58.7%, 0%, 34.5%)
CIE-LAB	lab(33.81, 27.41, -54.33)
CIE-LCH	lch(33.81, 60.85, 296.77°)
OKLab	oklab(44.01% 0.0079 -0.1564)
OKLCH	oklch(44.01% 0.157 272.9)
XYZ	xyz(10.7882, 7.9152, 37.5110)
Luminance	0.0792 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3945A7 #A79B39

analogous

#397CA7 #3945A7 #6439A7

triadic

#3945A7 #A73945 #45A739

tetradic

#3945A7 #A7397C #A79B39 #39A764

square

#3945A7 #A7397C #A79B39 #39A764

split-complementary

#3945A7 #A76439 #7CA739

monochromatic

#1A1F4C #293279 #3945A7 #5763C6 #858ED5

Accessibility & contrast

On white

8.13

#3945A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3945A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3945A7

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3945A7	#FFFFFF	#000000	##FFFFFF
##3945A7	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AA

Deuteranopia (green-blind)

#004BA5

Tritanopia (blue-blind)

#005D6F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3945a7;
/* rgb */ color: rgb(57, 69, 167);
/* oklch */ color: oklch(44.0% 0.157 272.9);

Tailwind

colors: {
  custom: {
    50: '#7c78c2',
    500: '#3945a7',
    950: '#000000',
  },
}

SCSS

$custom: #3945a7;
$custom-light: #7c78c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3945a7",
  "rgb": {
    "r": 57,
    "g": 69,
    "b": 167
  },
  "hsl": {
    "h": 233.455,
    "s": 49.107,
    "l": 43.922
  },
  "oklch": {
    "l": 0.44011,
    "c": 0.15657,
    "h": 272.9
  },
  "luminance": 0.07916
}

Semantic roles & 50–950 ramp

primary

#3945A7

secondary

#BFB87D

accent

#CA4FD9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #3945A7

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

Preview Lab → · Contrast checker → · Palette generator →