#374DB8#374DB8

#374DB8 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.8% C 0.170 H 269.8°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#374DB8
RGB	rgb(55, 77, 184)
HSL	hsl(230, 54%, 47%)
HSV	hsv(230, 70%, 72%)
CMYK	cmyk(70.1%, 58.2%, 0%, 27.8%)
CIE-LAB	lab(37.08, 28.03, -59.11)
CIE-LCH	lch(37.08, 65.42, 295.37°)
OKLab	oklab(46.83% -0.0007 -0.1704)
OKLCH	oklch(46.83% 0.17 269.8)
XYZ	xyz(12.8782, 9.5794, 46.5084)
Luminance	0.0958 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DB8 #B8A237

analogous

#378EB8 #374DB8 #6137B8

triadic

#374DB8 #B8374D #4DB837

tetradic

#374DB8 #B8378E #B8A237 #37B861

square

#374DB8 #B8378E #B8A237 #37B861

split-complementary

#374DB8 #B86137 #8EB837

monochromatic

#1B265A #293989 #374DB8 #5D71CF #8D9ADD

Accessibility & contrast

On white

7.20

#374DB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#374DB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DB8

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DB8	#FFFFFF	#000000	##FFFFFF
##374DB8	1.00	7.20	2.92	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBC

Deuteranopia (green-blind)

#0052B6

Tritanopia (blue-blind)

#00677B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374db8;
/* rgb */ color: rgb(55, 77, 184);
/* oklch */ color: oklch(46.8% 0.170 269.8);

Tailwind

colors: {
  custom: {
    50: '#7e7ece',
    500: '#374db8',
    950: '#000000',
  },
}

SCSS

$custom: #374db8;
$custom-light: #7e7ece;
$custom-dark: #000000;

JSON

{
  "hex": "#374db8",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 184
  },
  "hsl": {
    "h": 229.767,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.46832,
    "c": 0.17037,
    "h": 269.8
  },
  "luminance": 0.09581
}

Semantic roles & 50–950 ramp

primary

#374DB8

secondary

#C7BC84

accent

#C44ADD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #374DB8

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

Preview Lab → · Contrast checker → · Palette generator →