#3745AE#3745AE

#3745AE is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.5% C 0.167 H 272.0°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#3745AE
RGB	rgb(55, 69, 174)
HSL	hsl(233, 52%, 45%)
HSV	hsv(233, 68%, 68%)
CMYK	cmyk(68.4%, 60.3%, 0%, 31.8%)
CIE-LAB	lab(34.24, 29.61, -57.81)
CIE-LCH	lch(34.24, 64.95, 297.12°)
OKLab	oklab(44.47% 0.0057 -0.1666)
OKLCH	oklch(44.47% 0.167 272)
XYZ	xyz(11.3411, 8.1234, 41.0065)
Luminance	0.0812 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3745AE #AEA037

analogous

#3781AE #3745AE #6437AE

triadic

#3745AE #AE3745 #45AE37

tetradic

#3745AE #AE3781 #AEA037 #37AE64

square

#3745AE #AE3781 #AEA037 #37AE64

split-complementary

#3745AE #AE6437 #81AE37

monochromatic

#1A2051 #28337F #3745AE #5865CA #8690D9

Accessibility & contrast

On white

8.00

#3745AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3745AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3745AE

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3745AE	#FFFFFF	#000000	##FFFFFF
##3745AE	1.00	8.00	2.62	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B1

Deuteranopia (green-blind)

#004BAC

Tritanopia (blue-blind)

#005F73

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3745ae;
/* rgb */ color: rgb(55, 69, 174);
/* oklch */ color: oklch(44.5% 0.167 272.0);

Tailwind

colors: {
  custom: {
    50: '#7d78c7',
    500: '#3745ae',
    950: '#000000',
  },
}

SCSS

$custom: #3745ae;
$custom-light: #7d78c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3745ae",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 174
  },
  "hsl": {
    "h": 232.941,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.44474,
    "c": 0.16675,
    "h": 272
  },
  "luminance": 0.08124
}

Semantic roles & 50–950 ramp

primary

#3745AE

secondary

#C3BB7E

accent

#CB4CDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3745AE

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

Preview Lab → · Contrast checker → · Palette generator →