#374DB9#374DB9

#374DB9 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.9% C 0.172 H 269.8°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#374DB9
RGB	rgb(55, 77, 185)
HSL	hsl(230, 54%, 47%)
HSV	hsv(230, 70%, 73%)
CMYK	cmyk(70.3%, 58.4%, 0%, 27.5%)
CIE-LAB	lab(37.15, 28.39, -59.57)
CIE-LCH	lch(37.15, 65.99, 295.48°)
OKLab	oklab(46.91% -0.0007 -0.1717)
OKLCH	oklch(46.91% 0.172 269.8)
XYZ	xyz(12.9834, 9.6215, 47.0624)
Luminance	0.0962 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DB9 #B9A337

analogous

#378EB9 #374DB9 #6237B9

triadic

#374DB9 #B9374D #4DB937

tetradic

#374DB9 #B9378E #B9A337 #37B962

square

#374DB9 #B9378E #B9A337 #37B962

split-complementary

#374DB9 #B96237 #8EB937

monochromatic

#1B265B #29398A #374DB9 #5E71CF #8D9BDD

Accessibility & contrast

On white

7.18

#374DB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#374DB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DB9

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DB9	#FFFFFF	#000000	##FFFFFF
##374DB9	1.00	7.18	2.92	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBD

Deuteranopia (green-blind)

#0052B7

Tritanopia (blue-blind)

#00687B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374db9;
/* rgb */ color: rgb(55, 77, 185);
/* oklch */ color: oklch(46.9% 0.172 269.8);

Tailwind

colors: {
  custom: {
    50: '#7e7ecf',
    500: '#374db9',
    950: '#000000',
  },
}

SCSS

$custom: #374db9;
$custom-light: #7e7ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#374db9",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 185
  },
  "hsl": {
    "h": 229.846,
    "s": 54.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.46914,
    "c": 0.17172,
    "h": 269.8
  },
  "luminance": 0.09623
}

Semantic roles & 50–950 ramp

primary

#374DB9

secondary

#C8BC84

accent

#C54ADE

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #374DB9

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

Preview Lab → · Contrast checker → · Palette generator →