#3749AE#3749AE

#3749AE is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.2% C 0.162 H 270.8°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#3749AE
RGB	rgb(55, 73, 174)
HSL	hsl(231, 52%, 45%)
HSV	hsv(231, 68%, 68%)
CMYK	cmyk(68.4%, 58%, 0%, 31.8%)
CIE-LAB	lab(35.27, 27.01, -56.14)
CIE-LCH	lch(35.27, 62.30, 295.69°)
OKLab	oklab(45.24% 0.0024 -0.1617)
OKLCH	oklch(45.24% 0.162 270.8)
XYZ	xyz(11.5955, 8.6322, 41.0913)
Luminance	0.0863 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3749AE #AE9C37

analogous

#3785AE #3749AE #6037AE

triadic

#3749AE #AE3749 #49AE37

tetradic

#3749AE #AE3785 #AE9C37 #37AE60

square

#3749AE #AE3785 #AE9C37 #37AE60

split-complementary

#3749AE #AE6037 #85AE37

monochromatic

#1A2251 #28357F #3749AE #5869CA #8693D9

Accessibility & contrast

On white

7.70

#3749AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3749AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3749AE

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3749AE	#FFFFFF	#000000	##FFFFFF
##3749AE	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B1

Deuteranopia (green-blind)

#004EAC

Tritanopia (blue-blind)

#006274

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3749ae;
/* rgb */ color: rgb(55, 73, 174);
/* oklch */ color: oklch(45.2% 0.162 270.8);

Tailwind

colors: {
  custom: {
    50: '#7c7bc7',
    500: '#3749ae',
    950: '#000000',
  },
}

SCSS

$custom: #3749ae;
$custom-light: #7c7bc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3749ae",
  "rgb": {
    "r": 55,
    "g": 73,
    "b": 174
  },
  "hsl": {
    "h": 230.924,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.45238,
    "c": 0.16171,
    "h": 270.8
  },
  "luminance": 0.08633
}

Semantic roles & 50–950 ramp

primary

#3749AE

secondary

#C3B87E

accent

#C64CDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3749AE

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

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