#374CBD#374CBD

#374CBD is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.1% C 0.178 H 270.0°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#374CBD
RGB	rgb(55, 76, 189)
HSL	hsl(231, 55%, 48%)
HSV	hsv(231, 71%, 74%)
CMYK	cmyk(70.9%, 59.8%, 0%, 25.9%)
CIE-LAB	lab(37.21, 30.49, -61.82)
CIE-LCH	lch(37.21, 68.93, 296.25°)
OKLab	oklab(47.06% 0.0001 -0.1783)
OKLCH	oklch(47.06% 0.178 270)
XYZ	xyz(13.3422, 9.6539, 49.2945)
Luminance	0.0965 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374CBD #BDA837

analogous

#378FBD #374CBD #6537BD

triadic

#374CBD #BD374C #4CBD37

tetradic

#374CBD #BD378F #BDA837 #37BD65

square

#374CBD #BD378F #BDA837 #37BD65

split-complementary

#374CBD #BD6537 #8FBD37

monochromatic

#1B265E #29398E #374CBD #6072D1 #909CDF

Accessibility & contrast

On white

7.16

#374CBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#374CBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374CBD

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374CBD	#FFFFFF	#000000	##FFFFFF
##374CBD	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EC1

Deuteranopia (green-blind)

#0052BB

Tritanopia (blue-blind)

#00687D

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #374cbd;
/* rgb */ color: rgb(55, 76, 189);
/* oklch */ color: oklch(47.1% 0.178 270.0);

Tailwind

colors: {
  custom: {
    50: '#7f7dd2',
    500: '#374cbd',
    950: '#000000',
  },
}

SCSS

$custom: #374cbd;
$custom-light: #7f7dd2;
$custom-dark: #000000;

JSON

{
  "hex": "#374cbd",
  "rgb": {
    "r": 55,
    "g": 76,
    "b": 189
  },
  "hsl": {
    "h": 230.597,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.47057,
    "c": 0.17835,
    "h": 270
  },
  "luminance": 0.09655
}

Semantic roles & 50–950 ramp

primary

#374CBD

secondary

#C9BF86

accent

#C74ADE

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #374CBD

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

Preview Lab → · Contrast checker → · Palette generator →