#374EB0#374EB0

#374EB0 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.4% C 0.158 H 269.3°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#374EB0
RGB	rgb(55, 78, 176)
HSL	hsl(229, 52%, 45%)
HSV	hsv(229, 69%, 69%)
CMYK	cmyk(68.8%, 55.7%, 0%, 31%)
CIE-LAB	lab(36.73, 24.46, -54.95)
CIE-LCH	lch(36.73, 60.15, 294.00°)
OKLab	oklab(46.38% -0.0018 -0.1581)
OKLCH	oklch(46.38% 0.158 269.3)
XYZ	xyz(12.1337, 9.3944, 42.2397)
Luminance	0.0940 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374EB0 #B09937

analogous

#378AB0 #374EB0 #5C37B0

triadic

#374EB0 #B0374E #4EB037

tetradic

#374EB0 #B0378A #B09937 #37B05C

square

#374EB0 #B0378A #B09937 #37B05C

split-complementary

#374EB0 #B05C37 #8AB037

monochromatic

#1A2553 #283981 #374EB0 #596FCB #8897DA

Accessibility & contrast

On white

7.29

#374EB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#374EB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374EB0

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374EB0	#FFFFFF	#000000	##FFFFFF
##374EB0	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB3

Deuteranopia (green-blind)

#0051AE

Tritanopia (blue-blind)

#006677

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #374eb0;
/* rgb */ color: rgb(55, 78, 176);
/* oklch */ color: oklch(46.4% 0.158 269.3);

Tailwind

colors: {
  custom: {
    50: '#7c7fc8',
    500: '#374eb0',
    950: '#000000',
  },
}

SCSS

$custom: #374eb0;
$custom-light: #7c7fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#374eb0",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 176
  },
  "hsl": {
    "h": 228.595,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46384,
    "c": 0.15812,
    "h": 269.3
  },
  "luminance": 0.09396
}

Semantic roles & 50–950 ramp

primary

#374EB0

secondary

#C4B77F

accent

#C04CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #374EB0

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

Preview Lab → · Contrast checker → · Palette generator →