#374CB1#374CB1

#374CB1 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.1% C 0.162 H 270.0°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#374CB1
RGB	rgb(55, 76, 177)
HSL	hsl(230, 53%, 45%)
HSV	hsv(230, 69%, 69%)
CMYK	cmyk(68.9%, 57.1%, 0%, 30.6%)
CIE-LAB	lab(36.28, 26.14, -56.27)
CIE-LCH	lch(36.28, 62.05, 294.91°)
OKLab	oklab(46.07% -0.0001 -0.162)
OKLCH	oklch(46.07% 0.162 270)
XYZ	xyz(12.0931, 9.1543, 42.7161)
Luminance	0.0916 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374CB1 #B19C37

analogous

#3789B1 #374CB1 #5F37B1

triadic

#374CB1 #B1374C #4CB137

tetradic

#374CB1 #B13789 #B19C37 #37B15F

square

#374CB1 #B13789 #B19C37 #37B15F

split-complementary

#374CB1 #B15F37 #89B137

monochromatic

#1A2454 #283882 #374CB1 #5A6DCC #8896DA

Accessibility & contrast

On white

7.42

#374CB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#374CB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374CB1

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374CB1	#FFFFFF	#000000	##FFFFFF
##374CB1	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB4

Deuteranopia (green-blind)

#0050AF

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374cb1;
/* rgb */ color: rgb(55, 76, 177);
/* oklch */ color: oklch(46.1% 0.162 270.0);

Tailwind

colors: {
  custom: {
    50: '#7d7dc9',
    500: '#374cb1',
    950: '#000000',
  },
}

SCSS

$custom: #374cb1;
$custom-light: #7d7dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#374cb1",
  "rgb": {
    "r": 55,
    "g": 76,
    "b": 177
  },
  "hsl": {
    "h": 229.672,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.46068,
    "c": 0.16204,
    "h": 270
  },
  "luminance": 0.09155
}

Semantic roles & 50–950 ramp

primary

#374CB1

secondary

#C4B880

accent

#C34CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #374CB1

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

Preview Lab → · Contrast checker → · Palette generator →