#374EB5#374EB5

#374EB5 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.8% C 0.165 H 269.4°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#374EB5
RGB	rgb(55, 78, 181)
HSL	hsl(229, 53%, 46%)
HSV	hsv(229, 70%, 71%)
CMYK	cmyk(69.6%, 56.9%, 0%, 29%)
CIE-LAB	lab(37.11, 26.29, -57.29)
CIE-LCH	lch(37.11, 63.04, 294.65°)
OKLab	oklab(46.78% -0.0016 -0.165)
OKLCH	oklch(46.78% 0.165 269.4)
XYZ	xyz(12.6376, 9.5960, 44.8933)
Luminance	0.0960 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374EB5 #B59E37

analogous

#378DB5 #374EB5 #5F37B5

triadic

#374EB5 #B5374E #4EB537

tetradic

#374EB5 #B5378D #B59E37 #37B55F

square

#374EB5 #B5378D #B59E37 #37B55F

split-complementary

#374EB5 #B55F37 #8DB537

monochromatic

#1A2657 #293A86 #374EB5 #5C71CD #8B9ADC

Accessibility & contrast

On white

7.19

#374EB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#374EB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374EB5

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374EB5	#FFFFFF	#000000	##FFFFFF
##374EB5	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB9

Deuteranopia (green-blind)

#0052B3

Tritanopia (blue-blind)

#00677A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374eb5;
/* rgb */ color: rgb(55, 78, 181);
/* oklch */ color: oklch(46.8% 0.165 269.4);

Tailwind

colors: {
  custom: {
    50: '#7e7fcc',
    500: '#374eb5',
    950: '#000000',
  },
}

SCSS

$custom: #374eb5;
$custom-light: #7e7fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#374eb5",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 181
  },
  "hsl": {
    "h": 229.048,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.46782,
    "c": 0.16502,
    "h": 269.4
  },
  "luminance": 0.09597
}

Semantic roles & 50–950 ramp

primary

#374EB5

secondary

#C6BA82

accent

#C24BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #374EB5

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

Preview Lab → · Contrast checker → · Palette generator →