#3745AC#3745AC

#3745AC is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.3% C 0.164 H 272.0°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#3745AC
RGB	rgb(55, 69, 172)
HSL	hsl(233, 52%, 45%)
HSV	hsv(233, 68%, 67%)
CMYK	cmyk(68%, 59.9%, 0%, 32.5%)
CIE-LAB	lab(34.08, 28.89, -56.88)
CIE-LCH	lch(34.08, 63.80, 296.93°)
OKLab	oklab(44.31% 0.0057 -0.1639)
OKLCH	oklch(44.31% 0.164 272)
XYZ	xyz(11.1476, 8.0460, 39.9873)
Luminance	0.0805 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3745AC #AC9E37

analogous

#377FAC #3745AC #6437AC

triadic

#3745AC #AC3745 #45AC37

tetradic

#3745AC #AC377F #AC9E37 #37AC64

square

#3745AC #AC377F #AC9E37 #37AC64

split-complementary

#3745AC #AC6437 #7FAC37

monochromatic

#19204F #28327E #3745AC #5765C9 #858FD8

Accessibility & contrast

On white

8.05

#3745AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3745AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3745AC

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3745AC	#FFFFFF	#000000	##FFFFFF
##3745AC	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AF

Deuteranopia (green-blind)

#004BAA

Tritanopia (blue-blind)

#005F72

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3745ac;
/* rgb */ color: rgb(55, 69, 172);
/* oklch */ color: oklch(44.3% 0.164 272.0);

Tailwind

colors: {
  custom: {
    50: '#7c78c6',
    500: '#3745ac',
    950: '#000000',
  },
}

SCSS

$custom: #3745ac;
$custom-light: #7c78c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3745ac",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 172
  },
  "hsl": {
    "h": 232.821,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.44306,
    "c": 0.16401,
    "h": 272
  },
  "luminance": 0.08047
}

Semantic roles & 50–950 ramp

primary

#3745AC

secondary

#C2BA7D

accent

#CA4DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3745AC

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

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