#374BB2#374BB2

#374BB2 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.0% C 0.165 H 270.3°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#374BB2
RGB	rgb(55, 75, 178)
HSL	hsl(230, 53%, 46%)
HSV	hsv(230, 69%, 70%)
CMYK	cmyk(69.1%, 57.9%, 0%, 30.2%)
CIE-LAB	lab(36.09, 27.15, -57.17)
CIE-LCH	lch(36.09, 63.29, 295.41°)
OKLab	oklab(45.95% 0.0008 -0.1647)
OKLCH	oklch(45.95% 0.165 270.3)
XYZ	xyz(12.1248, 9.0576, 43.2202)
Luminance	0.0906 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374BB2 #B29E37

analogous

#3788B2 #374BB2 #6037B2

triadic

#374BB2 #B2374B #4BB237

tetradic

#374BB2 #B23788 #B29E37 #37B260

square

#374BB2 #B23788 #B29E37 #37B260

split-complementary

#374BB2 #B26037 #88B237

monochromatic

#1A2454 #293783 #374BB2 #5A6DCC #8996DB

Accessibility & contrast

On white

7.47

#374BB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#374BB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374BB2

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374BB2	#FFFFFF	#000000	##FFFFFF
##374BB2	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB5

Deuteranopia (green-blind)

#004FB0

Tritanopia (blue-blind)

#006477

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374bb2;
/* rgb */ color: rgb(55, 75, 178);
/* oklch */ color: oklch(46.0% 0.165 270.3);

Tailwind

colors: {
  custom: {
    50: '#7d7dca',
    500: '#374bb2',
    950: '#000000',
  },
}

SCSS

$custom: #374bb2;
$custom-light: #7d7dca;
$custom-dark: #000000;

JSON

{
  "hex": "#374bb2",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 178
  },
  "hsl": {
    "h": 230.244,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.45954,
    "c": 0.16468,
    "h": 270.3
  },
  "luminance": 0.09059
}

Semantic roles & 50–950 ramp

primary

#374BB2

secondary

#C5B980

accent

#C54CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #374BB2

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

Preview Lab → · Contrast checker → · Palette generator →