#374CB3#374CB3

#374CB3 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.2% C 0.165 H 270.0°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#374CB3
RGB	rgb(55, 76, 179)
HSL	hsl(230, 53%, 46%)
HSV	hsv(230, 69%, 70%)
CMYK	cmyk(69.3%, 57.5%, 0%, 29.8%)
CIE-LAB	lab(36.43, 26.86, -57.21)
CIE-LCH	lch(36.43, 63.20, 295.15°)
OKLab	oklab(46.23% 0 -0.1648)
OKLCH	oklch(46.23% 0.165 270)
XYZ	xyz(12.2939, 9.2346, 43.7736)
Luminance	0.0924 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374CB3 #B39E37

analogous

#378AB3 #374CB3 #6037B3

triadic

#374CB3 #B3374C #4CB337

tetradic

#374CB3 #B3378A #B39E37 #37B360

square

#374CB3 #B3378A #B39E37 #37B360

split-complementary

#374CB3 #B36037 #8AB337

monochromatic

#1A2455 #293884 #374CB3 #5B6ECD #8A97DB

Accessibility & contrast

On white

7.38

#374CB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#374CB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374CB3

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374CB3	#FFFFFF	#000000	##FFFFFF
##374CB3	1.00	7.38	2.85	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB6

Deuteranopia (green-blind)

#0050B1

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #374cb3;
/* rgb */ color: rgb(55, 76, 179);
/* oklch */ color: oklch(46.2% 0.165 270.0);

Tailwind

colors: {
  custom: {
    50: '#7d7dcb',
    500: '#374cb3',
    950: '#000000',
  },
}

SCSS

$custom: #374cb3;
$custom-light: #7d7dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#374cb3",
  "rgb": {
    "r": 55,
    "g": 76,
    "b": 179
  },
  "hsl": {
    "h": 229.839,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.4623,
    "c": 0.16479,
    "h": 270
  },
  "luminance": 0.09236
}

Semantic roles & 50–950 ramp

primary

#374CB3

secondary

#C5B981

accent

#C44BDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #374CB3

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

Preview Lab → · Contrast checker → · Palette generator →