#374CB5#374CB5

#374CB5 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.4% C 0.168 H 270.0°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#374CB5
RGB	rgb(55, 76, 181)
HSL	hsl(230, 53%, 46%)
HSV	hsv(230, 70%, 71%)
CMYK	cmyk(69.6%, 58%, 0%, 29%)
CIE-LAB	lab(36.59, 27.59, -58.14)
CIE-LCH	lch(36.59, 64.35, 295.39°)
OKLab	oklab(46.39% 0 -0.1675)
OKLCH	oklch(46.39% 0.168 270)
XYZ	xyz(12.4976, 9.3161, 44.8467)
Luminance	0.0932 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374CB5 #B5A037

analogous

#378BB5 #374CB5 #6137B5

triadic

#374CB5 #B5374C #4CB537

tetradic

#374CB5 #B5378B #B5A037 #37B561

square

#374CB5 #B5378B #B5A037 #37B561

split-complementary

#374CB5 #B56137 #8BB537

monochromatic

#1A2557 #293886 #374CB5 #5C6FCD #8B98DC

Accessibility & contrast

On white

7.33

#374CB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#374CB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374CB5

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374CB5	#FFFFFF	#000000	##FFFFFF
##374CB5	1.00	7.33	2.86	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB9

Deuteranopia (green-blind)

#0050B3

Tritanopia (blue-blind)

#006679

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #374cb5;
/* rgb */ color: rgb(55, 76, 181);
/* oklch */ color: oklch(46.4% 0.168 270.0);

Tailwind

colors: {
  custom: {
    50: '#7e7dcc',
    500: '#374cb5',
    950: '#000000',
  },
}

SCSS

$custom: #374cb5;
$custom-light: #7e7dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#374cb5",
  "rgb": {
    "r": 55,
    "g": 76,
    "b": 181
  },
  "hsl": {
    "h": 230,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.46393,
    "c": 0.16753,
    "h": 270
  },
  "luminance": 0.09317
}

Semantic roles & 50–950 ramp

primary

#374CB5

secondary

#C6BB82

accent

#C44BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #374CB5

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

Preview Lab → · Contrast checker → · Palette generator →