#375BB8#375BB8

#375BB8 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.7% C 0.153 H 265.3°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#375BB8
RGB	rgb(55, 91, 184)
HSL	hsl(223, 54%, 47%)
HSV	hsv(223, 70%, 72%)
CMYK	cmyk(70.1%, 50.5%, 0%, 27.8%)
CIE-LAB	lab(40.82, 18.92, -53.04)
CIE-LCH	lch(40.82, 56.32, 289.63°)
OKLab	oklab(49.66% -0.0125 -0.1523)
OKLCH	oklch(49.66% 0.153 265.3)
XYZ	xyz(13.9653, 11.7537, 46.8708)
Luminance	0.1176 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375BB8 #B89437

analogous

#379CB8 #375BB8 #5437B8

triadic

#375BB8 #B8375B #5BB837

tetradic

#375BB8 #B8379C #B89437 #37B854

square

#375BB8 #B8379C #B89437 #37B854

split-complementary

#375BB8 #B85437 #9CB837

monochromatic

#1B2C5A #294489 #375BB8 #5D7DCF #8DA3DD

Accessibility & contrast

On white

6.27

#375BB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#375BB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375BB8

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375BB8	#FFFFFF	#000000	##FFFFFF
##375BB8	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2466BB

Deuteranopia (green-blind)

#005BB6

Tritanopia (blue-blind)

#007181

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #375bb8;
/* rgb */ color: rgb(55, 91, 184);
/* oklch */ color: oklch(49.7% 0.153 265.3);

Tailwind

colors: {
  custom: {
    50: '#7d88ce',
    500: '#375bb8',
    950: '#000000',
  },
}

SCSS

$custom: #375bb8;
$custom-light: #7d88ce;
$custom-dark: #000000;

JSON

{
  "hex": "#375bb8",
  "rgb": {
    "r": 55,
    "g": 91,
    "b": 184
  },
  "hsl": {
    "h": 223.256,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.49655,
    "c": 0.15283,
    "h": 265.3
  },
  "luminance": 0.11755
}

Semantic roles & 50–950 ramp

primary

#375BB8

secondary

#C7B484

accent

#B44ADD

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #375BB8

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

Preview Lab → · Contrast checker → · Palette generator →