#374EB4#374EB4

#374EB4 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.7% C 0.164 H 269.4°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#374EB4
RGB	rgb(55, 78, 180)
HSL	hsl(229, 53%, 46%)
HSV	hsv(229, 69%, 71%)
CMYK	cmyk(69.4%, 56.7%, 0%, 29.4%)
CIE-LAB	lab(37.03, 25.92, -56.83)
CIE-LCH	lch(37.03, 62.46, 294.52°)
OKLab	oklab(46.7% -0.0017 -0.1636)
OKLCH	oklch(46.7% 0.164 269.4)
XYZ	xyz(12.5353, 9.5551, 44.3549)
Luminance	0.0956 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374EB4 #B49D37

analogous

#378CB4 #374EB4 #5E37B4

triadic

#374EB4 #B4374E #4EB437

tetradic

#374EB4 #B4378C #B49D37 #37B45E

square

#374EB4 #B4378C #B49D37 #37B45E

split-complementary

#374EB4 #B45E37 #8CB437

monochromatic

#1A2556 #293A85 #374EB4 #5B70CD #8A99DB

Accessibility & contrast

On white

7.21

#374EB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#374EB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374EB4

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374EB4	#FFFFFF	#000000	##FFFFFF
##374EB4	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB7

Deuteranopia (green-blind)

#0052B2

Tritanopia (blue-blind)

#006779

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374eb4;
/* rgb */ color: rgb(55, 78, 180);
/* oklch */ color: oklch(46.7% 0.164 269.4);

Tailwind

colors: {
  custom: {
    50: '#7d7fcb',
    500: '#374eb4',
    950: '#000000',
  },
}

SCSS

$custom: #374eb4;
$custom-light: #7d7fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#374eb4",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 180
  },
  "hsl": {
    "h": 228.96,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.46702,
    "c": 0.16365,
    "h": 269.4
  },
  "luminance": 0.09556
}

Semantic roles & 50–950 ramp

primary

#374EB4

secondary

#C6B981

accent

#C24BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #374EB4

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

Preview Lab → · Contrast checker → · Palette generator →