#374BBF#374BBF

#374BBF is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.0% C 0.182 H 270.3°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#374BBF
RGB	rgb(55, 75, 191)
HSL	hsl(231, 55%, 48%)
HSV	hsv(231, 71%, 75%)
CMYK	cmyk(71.2%, 60.7%, 0%, 25.1%)
CIE-LAB	lab(37.12, 31.85, -63.14)
CIE-LCH	lch(37.12, 70.72, 296.77°)
OKLab	oklab(47.04% 0.0008 -0.1822)
OKLCH	oklch(47.04% 0.182 270.3)
XYZ	xyz(13.4924, 9.6046, 50.4229)
Luminance	0.0961 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374BBF #BFAB37

analogous

#378FBF #374BBF #6737BF

triadic

#374BBF #BF374B #4BBF37

tetradic

#374BBF #BF378F #BFAB37 #37BF67

square

#374BBF #BF378F #BFAB37 #37BF67

split-complementary

#374BBF #BF6737 #8FBF37

monochromatic

#1C2660 #29388F #374BBF #6272D2 #919DDF

Accessibility & contrast

On white

7.19

#374BBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#374BBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374BBF

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374BBF	#FFFFFF	#000000	##FFFFFF
##374BBF	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EC3

Deuteranopia (green-blind)

#0051BD

Tritanopia (blue-blind)

#00687E

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374bbf;
/* rgb */ color: rgb(55, 75, 191);
/* oklch */ color: oklch(47.0% 0.182 270.3);

Tailwind

colors: {
  custom: {
    50: '#807dd3',
    500: '#374bbf',
    950: '#000000',
  },
}

SCSS

$custom: #374bbf;
$custom-light: #807dd3;
$custom-dark: #000000;

JSON

{
  "hex": "#374bbf",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 191
  },
  "hsl": {
    "h": 231.176,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4704,
    "c": 0.18223,
    "h": 270.3
  },
  "luminance": 0.09606
}

Semantic roles & 50–950 ramp

primary

#374BBF

secondary

#CAC088

accent

#C949DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #374BBF

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

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