#374CB7#374CB7

#374CB7 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.6% C 0.170 H 270.0°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#374CB7
RGB	rgb(55, 76, 183)
HSL	hsl(230, 54%, 47%)
HSV	hsv(230, 70%, 72%)
CMYK	cmyk(69.9%, 58.5%, 0%, 28.2%)
CIE-LAB	lab(36.74, 28.31, -59.07)
CIE-LCH	lch(36.74, 65.50, 295.61°)
OKLab	oklab(46.56% 0.0001 -0.1703)
OKLCH	oklch(46.56% 0.17 270)
XYZ	xyz(12.7043, 9.3988, 45.9352)
Luminance	0.0940 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374CB7 #B7A237

analogous

#378CB7 #374CB7 #6237B7

triadic

#374CB7 #B7374C #4CB737

tetradic

#374CB7 #B7378C #B7A237 #37B762

square

#374CB7 #B7378C #B7A237 #37B762

split-complementary

#374CB7 #B76237 #8CB737

monochromatic

#1B2559 #293888 #374CB7 #5D70CE #8C99DC

Accessibility & contrast

On white

7.29

#374CB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#374CB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374CB7

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374CB7	#FFFFFF	#000000	##FFFFFF
##374CB7	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)

#005CBB

Deuteranopia (green-blind)

#0051B5

Tritanopia (blue-blind)

#00667A

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #374cb7;
/* rgb */ color: rgb(55, 76, 183);
/* oklch */ color: oklch(46.6% 0.170 270.0);

Tailwind

colors: {
  custom: {
    50: '#7e7dcd',
    500: '#374cb7',
    950: '#000000',
  },
}

SCSS

$custom: #374cb7;
$custom-light: #7e7dcd;
$custom-dark: #000000;

JSON

{
  "hex": "#374cb7",
  "rgb": {
    "r": 55,
    "g": 76,
    "b": 183
  },
  "hsl": {
    "h": 230.156,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.46557,
    "c": 0.17025,
    "h": 270
  },
  "luminance": 0.094
}

Semantic roles & 50–950 ramp

primary

#374CB7

secondary

#C7BC83

accent

#C54BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #374CB7

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

Preview Lab → · Contrast checker → · Palette generator →