#374AB6#374AB6

#374AB6 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.1% C 0.171 H 270.5°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#374AB6
RGB	rgb(55, 74, 182)
HSL	hsl(231, 54%, 46%)
HSV	hsv(231, 70%, 71%)
CMYK	cmyk(69.8%, 59.3%, 0%, 28.6%)
CIE-LAB	lab(36.15, 29.25, -59.44)
CIE-LCH	lch(36.15, 66.25, 296.20°)
OKLab	oklab(46.09% 0.0016 -0.1714)
OKLCH	oklch(46.09% 0.171 270.5)
XYZ	xyz(12.4650, 9.0860, 45.3438)
Luminance	0.0909 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374AB6 #B6A337

analogous

#378AB6 #374AB6 #6437B6

triadic

#374AB6 #B6374A #4AB637

tetradic

#374AB6 #B6378A #B6A337 #37B664

square

#374AB6 #B6378A #B6A337 #37B664

split-complementary

#374AB6 #B66437 #8AB637

monochromatic

#1B2458 #293787 #374AB6 #5C6DCE #8B97DC

Accessibility & contrast

On white

7.45

#374AB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#374AB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374AB6

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374AB6	#FFFFFF	#000000	##FFFFFF
##374AB6	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BBA

Deuteranopia (green-blind)

#004FB4

Tritanopia (blue-blind)

#006579

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374ab6;
/* rgb */ color: rgb(55, 74, 182);
/* oklch */ color: oklch(46.1% 0.171 270.5);

Tailwind

colors: {
  custom: {
    50: '#7e7ccd',
    500: '#374ab6',
    950: '#000000',
  },
}

SCSS

$custom: #374ab6;
$custom-light: #7e7ccd;
$custom-dark: #000000;

JSON

{
  "hex": "#374ab6",
  "rgb": {
    "r": 55,
    "g": 74,
    "b": 182
  },
  "hsl": {
    "h": 231.024,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.46092,
    "c": 0.17139,
    "h": 270.5
  },
  "luminance": 0.09087
}

Semantic roles & 50–950 ramp

primary

#374AB6

secondary

#C6BC82

accent

#C74BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #374AB6

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

Preview Lab → · Contrast checker → · Palette generator →