#374AB8#374AB8

#374AB8 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.3% C 0.174 H 270.5°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#374AB8
RGB	rgb(55, 74, 184)
HSL	hsl(231, 54%, 47%)
HSV	hsv(231, 70%, 72%)
CMYK	cmyk(70.1%, 59.8%, 0%, 27.8%)
CIE-LAB	lab(36.31, 29.97, -60.36)
CIE-LCH	lch(36.31, 67.39, 296.41°)
OKLab	oklab(46.26% 0.0016 -0.1741)
OKLCH	oklch(46.26% 0.174 270.5)
XYZ	xyz(12.6731, 9.1692, 46.4401)
Luminance	0.0917 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374AB8 #B8A537

analogous

#378BB8 #374AB8 #6537B8

triadic

#374AB8 #B8374A #4AB837

tetradic

#374AB8 #B8378B #B8A537 #37B865

square

#374AB8 #B8378B #B8A537 #37B865

split-complementary

#374AB8 #B86537 #8BB837

monochromatic

#1B245A #293789 #374AB8 #5D6ECF #8D98DD

Accessibility & contrast

On white

7.41

#374AB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#374AB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374AB8

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374AB8	#FFFFFF	#000000	##FFFFFF
##374AB8	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BBC

Deuteranopia (green-blind)

#0050B6

Tritanopia (blue-blind)

#00657A

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374ab8;
/* rgb */ color: rgb(55, 74, 184);
/* oklch */ color: oklch(46.3% 0.174 270.5);

Tailwind

colors: {
  custom: {
    50: '#7e7cce',
    500: '#374ab8',
    950: '#000000',
  },
}

SCSS

$custom: #374ab8;
$custom-light: #7e7cce;
$custom-dark: #000000;

JSON

{
  "hex": "#374ab8",
  "rgb": {
    "r": 55,
    "g": 74,
    "b": 184
  },
  "hsl": {
    "h": 231.163,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4626,
    "c": 0.17409,
    "h": 270.5
  },
  "luminance": 0.0917
}

Semantic roles & 50–950 ramp

primary

#374AB8

secondary

#C7BD84

accent

#C84ADD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #374AB8

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

Preview Lab → · Contrast checker → · Palette generator →