#374BBD#374BBD

#374BBD is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.9% C 0.180 H 270.3°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#374BBD
RGB	rgb(55, 75, 189)
HSL	hsl(231, 55%, 48%)
HSV	hsv(231, 71%, 74%)
CMYK	cmyk(70.9%, 60.3%, 0%, 25.9%)
CIE-LAB	lab(36.96, 31.13, -62.23)
CIE-LCH	lch(36.96, 69.59, 296.57°)
OKLab	oklab(46.87% 0.0009 -0.1796)
OKLCH	oklch(46.87% 0.18 270.3)
XYZ	xyz(13.2738, 9.5172, 49.2717)
Luminance	0.0952 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374BBD #BDA937

analogous

#378EBD #374BBD #6637BD

triadic

#374BBD #BD374B #4BBD37

tetradic

#374BBD #BD378E #BDA937 #37BD66

square

#374BBD #BD378E #BDA937 #37BD66

split-complementary

#374BBD #BD6637 #8EBD37

monochromatic

#1B255E #29388E #374BBD #6071D1 #909CDF

Accessibility & contrast

On white

7.23

#374BBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#374BBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374BBD

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374BBD	#FFFFFF	#000000	##FFFFFF
##374BBD	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC1

Deuteranopia (green-blind)

#0051BB

Tritanopia (blue-blind)

#00687D

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374bbd;
/* rgb */ color: rgb(55, 75, 189);
/* oklch */ color: oklch(46.9% 0.180 270.3);

Tailwind

colors: {
  custom: {
    50: '#7f7dd2',
    500: '#374bbd',
    950: '#000000',
  },
}

SCSS

$custom: #374bbd;
$custom-light: #7f7dd2;
$custom-dark: #000000;

JSON

{
  "hex": "#374bbd",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 189
  },
  "hsl": {
    "h": 231.045,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.4687,
    "c": 0.17957,
    "h": 270.3
  },
  "luminance": 0.09519
}

Semantic roles & 50–950 ramp

primary

#374BBD

secondary

#C9BF86

accent

#C84ADE

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #374BBD

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

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