#374CBC#374CBC

#374CBC is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.0% C 0.177 H 270.0°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#374CBC
RGB	rgb(55, 76, 188)
HSL	hsl(231, 55%, 48%)
HSV	hsv(231, 71%, 74%)
CMYK	cmyk(70.7%, 59.6%, 0%, 26.3%)
CIE-LAB	lab(37.13, 30.12, -61.37)
CIE-LCH	lch(37.13, 68.36, 296.15°)
OKLab	oklab(46.97% 0.0001 -0.177)
OKLCH	oklch(46.97% 0.177 270)
XYZ	xyz(13.2340, 9.6106, 48.7248)
Luminance	0.0961 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374CBC #BCA737

analogous

#378FBC #374CBC #6437BC

triadic

#374CBC #BC374C #4CBC37

tetradic

#374CBC #BC378F #BCA737 #37BC64

square

#374CBC #BC378F #BCA737 #37BC64

split-complementary

#374CBC #BC6437 #8FBC37

monochromatic

#1B265D #29398D #374CBC #6072D0 #8F9CDE

Accessibility & contrast

On white

7.19

#374CBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#374CBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374CBC

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374CBC	#FFFFFF	#000000	##FFFFFF
##374CBC	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EC0

Deuteranopia (green-blind)

#0051BA

Tritanopia (blue-blind)

#00687C

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374cbc;
/* rgb */ color: rgb(55, 76, 188);
/* oklch */ color: oklch(47.0% 0.177 270.0);

Tailwind

colors: {
  custom: {
    50: '#7f7dd1',
    500: '#374cbc',
    950: '#000000',
  },
}

SCSS

$custom: #374cbc;
$custom-light: #7f7dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#374cbc",
  "rgb": {
    "r": 55,
    "g": 76,
    "b": 188
  },
  "hsl": {
    "h": 230.526,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.46973,
    "c": 0.17701,
    "h": 270
  },
  "luminance": 0.09612
}

Semantic roles & 50–950 ramp

primary

#374CBC

secondary

#C9BE86

accent

#C74ADE

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #374CBC

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

Preview Lab → · Contrast checker → · Palette generator →