#3745AF#3745AF

#3745AF is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.6% C 0.168 H 271.9°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#3745AF
RGB	rgb(55, 69, 175)
HSL	hsl(233, 52%, 45%)
HSV	hsv(233, 69%, 69%)
CMYK	cmyk(68.6%, 60.6%, 0%, 31.4%)
CIE-LAB	lab(34.32, 29.97, -58.28)
CIE-LCH	lch(34.32, 65.53, 297.21°)
OKLab	oklab(44.56% 0.0057 -0.168)
OKLCH	oklch(44.56% 0.168 271.9)
XYZ	xyz(11.4389, 8.1625, 41.5218)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3745AF #AFA137

analogous

#3781AF #3745AF #6537AF

triadic

#3745AF #AF3745 #45AF37

tetradic

#3745AF #AF3781 #AFA137 #37AF65

square

#3745AF #AF3781 #AFA137 #37AF65

split-complementary

#3745AF #AF6537 #81AF37

monochromatic

#1A2052 #283380 #3745AF #5966CB #8791D9

Accessibility & contrast

On white

7.98

#3745AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3745AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3745AF

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3745AF	#FFFFFF	#000000	##FFFFFF
##3745AF	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B2

Deuteranopia (green-blind)

#004BAD

Tritanopia (blue-blind)

#005F73

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3745af;
/* rgb */ color: rgb(55, 69, 175);
/* oklch */ color: oklch(44.6% 0.168 271.9);

Tailwind

colors: {
  custom: {
    50: '#7d78c8',
    500: '#3745af',
    950: '#000000',
  },
}

SCSS

$custom: #3745af;
$custom-light: #7d78c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3745af",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 175
  },
  "hsl": {
    "h": 233,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.44559,
    "c": 0.16811,
    "h": 271.9
  },
  "luminance": 0.08164
}

Semantic roles & 50–950 ramp

primary

#3745AF

secondary

#C3BB7F

accent

#CB4CDC

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3745AF

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

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