#374EB2#374EB2

#374EB2 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.5% C 0.161 H 269.4°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#374EB2
RGB	rgb(55, 78, 178)
HSL	hsl(229, 53%, 46%)
HSV	hsv(229, 69%, 70%)
CMYK	cmyk(69.1%, 56.2%, 0%, 30.2%)
CIE-LAB	lab(36.88, 25.19, -55.89)
CIE-LCH	lch(36.88, 61.30, 294.27°)
OKLab	oklab(46.54% -0.0017 -0.1609)
OKLCH	oklch(46.54% 0.161 269.4)
XYZ	xyz(12.3331, 9.4742, 43.2896)
Luminance	0.0948 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374EB2 #B29B37

analogous

#378CB2 #374EB2 #5D37B2

triadic

#374EB2 #B2374E #4EB237

tetradic

#374EB2 #B2378C #B29B37 #37B25D

square

#374EB2 #B2378C #B29B37 #37B25D

split-complementary

#374EB2 #B25D37 #8CB237

monochromatic

#1A2554 #293A83 #374EB2 #5A6FCC #8998DB

Accessibility & contrast

On white

7.25

#374EB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#374EB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374EB2

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374EB2	#FFFFFF	#000000	##FFFFFF
##374EB2	1.00	7.25	2.89	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB5

Deuteranopia (green-blind)

#0051B0

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374eb2;
/* rgb */ color: rgb(55, 78, 178);
/* oklch */ color: oklch(46.5% 0.161 269.4);

Tailwind

colors: {
  custom: {
    50: '#7d7fca',
    500: '#374eb2',
    950: '#000000',
  },
}

SCSS

$custom: #374eb2;
$custom-light: #7d7fca;
$custom-dark: #000000;

JSON

{
  "hex": "#374eb2",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 178
  },
  "hsl": {
    "h": 228.78,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.46542,
    "c": 0.16089,
    "h": 269.4
  },
  "luminance": 0.09475
}

Semantic roles & 50–950 ramp

primary

#374EB2

secondary

#C5B880

accent

#C14CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #374EB2

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

Preview Lab → · Contrast checker → · Palette generator →