#374AB5#374AB5

#374AB5 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.0% C 0.170 H 270.5°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#374AB5
RGB	rgb(55, 74, 181)
HSL	hsl(231, 53%, 46%)
HSV	hsv(231, 70%, 71%)
CMYK	cmyk(69.6%, 59.1%, 0%, 29%)
CIE-LAB	lab(36.07, 28.89, -58.98)
CIE-LCH	lch(36.07, 65.67, 296.10°)
OKLab	oklab(46.01% 0.0016 -0.17)
OKLCH	oklch(46.01% 0.17 270.5)
XYZ	xyz(12.3620, 9.0448, 44.8014)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374AB5 #B5A237

analogous

#3789B5 #374AB5 #6337B5

triadic

#374AB5 #B5374A #4AB537

tetradic

#374AB5 #B53789 #B5A237 #37B563

square

#374AB5 #B53789 #B5A237 #37B563

split-complementary

#374AB5 #B56337 #89B537

monochromatic

#1A2457 #293786 #374AB5 #5C6DCD #8B97DC

Accessibility & contrast

On white

7.48

#374AB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#374AB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374AB5

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374AB5	#FFFFFF	#000000	##FFFFFF
##374AB5	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB9

Deuteranopia (green-blind)

#004FB3

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374ab5;
/* rgb */ color: rgb(55, 74, 181);
/* oklch */ color: oklch(46.0% 0.170 270.5);

Tailwind

colors: {
  custom: {
    50: '#7e7ccc',
    500: '#374ab5',
    950: '#000000',
  },
}

SCSS

$custom: #374ab5;
$custom-light: #7e7ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#374ab5",
  "rgb": {
    "r": 55,
    "g": 74,
    "b": 181
  },
  "hsl": {
    "h": 230.952,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.46009,
    "c": 0.17003,
    "h": 270.5
  },
  "luminance": 0.09046
}

Semantic roles & 50–950 ramp

primary

#374AB5

secondary

#C6BC82

accent

#C74BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #374AB5

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

Preview Lab → · Contrast checker → · Palette generator →