#375DBB#375DBB

#375DBB is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.3% C 0.154 H 264.8°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#375DBB
RGB	rgb(55, 93, 187)
HSL	hsl(223, 55%, 47%)
HSV	hsv(223, 71%, 73%)
CMYK	cmyk(70.6%, 50.3%, 0%, 26.7%)
CIE-LAB	lab(41.58, 18.73, -53.58)
CIE-LCH	lch(41.58, 56.76, 289.27°)
OKLab	oklab(50.29% -0.0139 -0.1539)
OKLCH	oklch(50.29% 0.155 264.8)
XYZ	xyz(14.4564, 12.2273, 48.6023)
Luminance	0.1223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375DBB #BB9537

analogous

#379FBB #375DBB #5337BB

triadic

#375DBB #BB375D #5DBB37

tetradic

#375DBB #BB379F #BB9537 #37BB53

square

#375DBB #BB379F #BB9537 #37BB53

split-complementary

#375DBB #BB5337 #9FBB37

monochromatic

#1B2E5C #29458C #375DBB #5F80D0 #8EA5DE

Accessibility & contrast

On white

6.09

#375DBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#375DBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375DBB

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375DBB	#FFFFFF	#000000	##FFFFFF
##375DBB	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2668BE

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#007383

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #375dbb;
/* rgb */ color: rgb(55, 93, 187);
/* oklch */ color: oklch(50.3% 0.154 264.8);

Tailwind

colors: {
  custom: {
    50: '#7e8ad0',
    500: '#375dbb',
    950: '#000000',
  },
}

SCSS

$custom: #375dbb;
$custom-light: #7e8ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#375dbb",
  "rgb": {
    "r": 55,
    "g": 93,
    "b": 187
  },
  "hsl": {
    "h": 222.727,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.50293,
    "c": 0.1545,
    "h": 264.8
  },
  "luminance": 0.12229
}

Semantic roles & 50–950 ramp

primary

#375DBB

secondary

#C9B585

accent

#B34ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #375DBB

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

Preview Lab → · Contrast checker → · Palette generator →