#374BB6#374BB6

#374BB6 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.3% C 0.170 H 270.3°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#374BB6
RGB	rgb(55, 75, 182)
HSL	hsl(231, 54%, 46%)
HSV	hsv(231, 70%, 71%)
CMYK	cmyk(69.8%, 58.8%, 0%, 28.6%)
CIE-LAB	lab(36.41, 28.60, -59.02)
CIE-LCH	lch(36.41, 65.59, 295.85°)
OKLab	oklab(46.28% 0.0008 -0.1701)
OKLCH	oklch(46.28% 0.17 270.3)
XYZ	xyz(12.5322, 9.2206, 45.3662)
Luminance	0.0922 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374BB6 #B6A237

analogous

#378BB6 #374BB6 #6337B6

triadic

#374BB6 #B6374B #4BB637

tetradic

#374BB6 #B6378B #B6A237 #37B663

square

#374BB6 #B6378B #B6A237 #37B663

split-complementary

#374BB6 #B66337 #8BB637

monochromatic

#1B2458 #293887 #374BB6 #5C6ECE #8B98DC

Accessibility & contrast

On white

7.38

#374BB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#374BB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374BB6

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374BB6	#FFFFFF	#000000	##FFFFFF
##374BB6	1.00	7.38	2.84	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBA

Deuteranopia (green-blind)

#0050B4

Tritanopia (blue-blind)

#006679

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #374bb6;
/* rgb */ color: rgb(55, 75, 182);
/* oklch */ color: oklch(46.3% 0.170 270.3);

Tailwind

colors: {
  custom: {
    50: '#7e7dcd',
    500: '#374bb6',
    950: '#000000',
  },
}

SCSS

$custom: #374bb6;
$custom-light: #7e7dcd;
$custom-dark: #000000;

JSON

{
  "hex": "#374bb6",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 182
  },
  "hsl": {
    "h": 230.551,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.46283,
    "c": 0.17014,
    "h": 270.3
  },
  "luminance": 0.09222
}

Semantic roles & 50–950 ramp

primary

#374BB6

secondary

#C6BC82

accent

#C64BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #374BB6

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

Preview Lab → · Contrast checker → · Palette generator →