#374BBC#374BBC

#374BBC is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.8% C 0.178 H 270.3°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#374BBC
RGB	rgb(55, 75, 188)
HSL	hsl(231, 55%, 48%)
HSV	hsv(231, 71%, 74%)
CMYK	cmyk(70.7%, 60.1%, 0%, 26.3%)
CIE-LAB	lab(36.88, 30.77, -61.78)
CIE-LCH	lch(36.88, 69.02, 296.48°)
OKLab	oklab(46.79% 0.0009 -0.1782)
OKLCH	oklch(46.79% 0.178 270.3)
XYZ	xyz(13.1656, 9.4739, 48.7020)
Luminance	0.0948 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374BBC #BCA837

analogous

#378EBC #374BBC #6537BC

triadic

#374BBC #BC374B #4BBC37

tetradic

#374BBC #BC378E #BCA837 #37BC65

square

#374BBC #BC378E #BCA837 #37BC65

split-complementary

#374BBC #BC6537 #8EBC37

monochromatic

#1B255D #29388D #374BBC #6071D0 #8F9BDE

Accessibility & contrast

On white

7.25

#374BBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#374BBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374BBC

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

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

#005DC0

Deuteranopia (green-blind)

#0051BA

Tritanopia (blue-blind)

#00677C

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374bbc;
/* rgb */ color: rgb(55, 75, 188);
/* oklch */ color: oklch(46.8% 0.178 270.3);

Tailwind

colors: {
  custom: {
    50: '#7f7dd1',
    500: '#374bbc',
    950: '#000000',
  },
}

SCSS

$custom: #374bbc;
$custom-light: #7f7dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#374bbc",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 188
  },
  "hsl": {
    "h": 230.977,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.46785,
    "c": 0.17823,
    "h": 270.3
  },
  "luminance": 0.09475
}

Semantic roles & 50–950 ramp

primary

#374BBC

secondary

#C9BF86

accent

#C84ADE

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #374BBC

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

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