#374BB5#374BB5

#374BB5 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.2% C 0.169 H 270.3°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#374BB5
RGB	rgb(55, 75, 181)
HSL	hsl(230, 53%, 46%)
HSV	hsv(230, 70%, 71%)
CMYK	cmyk(69.6%, 58.6%, 0%, 29%)
CIE-LAB	lab(36.33, 28.24, -58.56)
CIE-LCH	lch(36.33, 65.01, 295.74°)
OKLab	oklab(46.2% 0.0008 -0.1688)
OKLCH	oklch(46.2% 0.169 270.3)
XYZ	xyz(12.4293, 9.1794, 44.8239)
Luminance	0.0918 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374BB5 #B5A137

analogous

#378AB5 #374BB5 #6237B5

triadic

#374BB5 #B5374B #4BB537

tetradic

#374BB5 #B5378A #B5A137 #37B562

square

#374BB5 #B5378A #B5A137 #37B562

split-complementary

#374BB5 #B56237 #8AB537

monochromatic

#1A2457 #293886 #374BB5 #5C6ECD #8B98DC

Accessibility & contrast

On white

7.40

#374BB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#374BB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374BB5

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374BB5	#FFFFFF	#000000	##FFFFFF
##374BB5	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB9

Deuteranopia (green-blind)

#0050B3

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374bb5;
/* rgb */ color: rgb(55, 75, 181);
/* oklch */ color: oklch(46.2% 0.169 270.3);

Tailwind

colors: {
  custom: {
    50: '#7e7dcc',
    500: '#374bb5',
    950: '#000000',
  },
}

SCSS

$custom: #374bb5;
$custom-light: #7e7dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#374bb5",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 181
  },
  "hsl": {
    "h": 230.476,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.462,
    "c": 0.16878,
    "h": 270.3
  },
  "luminance": 0.09181
}

Semantic roles & 50–950 ramp

primary

#374BB5

secondary

#C6BB82

accent

#C64BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #374BB5

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

Preview Lab → · Contrast checker → · Palette generator →