#374CB8#374CB8

#374CB8 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.6% C 0.172 H 270.0°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#374CB8
RGB	rgb(55, 76, 184)
HSL	hsl(230, 54%, 47%)
HSV	hsv(230, 70%, 72%)
CMYK	cmyk(70.1%, 58.7%, 0%, 27.8%)
CIE-LAB	lab(36.82, 28.68, -59.53)
CIE-LCH	lch(36.82, 66.08, 295.72°)
OKLab	oklab(46.64% 0.0001 -0.1716)
OKLCH	oklch(46.64% 0.172 270)
XYZ	xyz(12.8088, 9.4405, 46.4853)
Luminance	0.0944 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374CB8 #B8A337

analogous

#378CB8 #374CB8 #6337B8

triadic

#374CB8 #B8374C #4CB837

tetradic

#374CB8 #B8378C #B8A337 #37B863

square

#374CB8 #B8378C #B8A337 #37B863

split-complementary

#374CB8 #B86337 #8CB837

monochromatic

#1B255A #293989 #374CB8 #5D70CF #8D9ADD

Accessibility & contrast

On white

7.27

#374CB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#374CB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374CB8

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374CB8	#FFFFFF	#000000	##FFFFFF
##374CB8	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBC

Deuteranopia (green-blind)

#0051B6

Tritanopia (blue-blind)

#00677A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374cb8;
/* rgb */ color: rgb(55, 76, 184);
/* oklch */ color: oklch(46.6% 0.172 270.0);

Tailwind

colors: {
  custom: {
    50: '#7e7dce',
    500: '#374cb8',
    950: '#000000',
  },
}

SCSS

$custom: #374cb8;
$custom-light: #7e7dce;
$custom-dark: #000000;

JSON

{
  "hex": "#374cb8",
  "rgb": {
    "r": 55,
    "g": 76,
    "b": 184
  },
  "hsl": {
    "h": 230.233,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4664,
    "c": 0.17161,
    "h": 270
  },
  "luminance": 0.09442
}

Semantic roles & 50–950 ramp

primary

#374CB8

secondary

#C7BC84

accent

#C54ADD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #374CB8

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

Preview Lab → · Contrast checker → · Palette generator →