#375EB5#375EB5

#375EB5 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.1% C 0.145 H 263.8°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#375EB5
RGB	rgb(55, 94, 181)
HSL	hsl(221, 53%, 46%)
HSV	hsv(221, 70%, 71%)
CMYK	cmyk(69.6%, 48.1%, 0%, 29%)
CIE-LAB	lab(41.46, 15.87, -50.26)
CIE-LCH	lch(41.46, 52.71, 287.52°)
OKLab	oklab(50.08% -0.0156 -0.1441)
OKLCH	oklch(50.08% 0.145 263.8)
XYZ	xyz(13.9158, 12.1524, 45.3194)
Luminance	0.1215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375EB5 #B58E37

analogous

#379DB5 #375EB5 #4F37B5

triadic

#375EB5 #B5375E #5EB537

tetradic

#375EB5 #B5379D #B58E37 #37B54F

square

#375EB5 #B5379D #B58E37 #37B54F

split-complementary

#375EB5 #B54F37 #9DB537

monochromatic

#1A2D57 #294686 #375EB5 #5C7FCD #8BA4DC

Accessibility & contrast

On white

6.12

#375EB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#375EB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375EB5

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375EB5	#FFFFFF	#000000	##FFFFFF
##375EB5	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F68B8

Deuteranopia (green-blind)

#105CB3

Tritanopia (blue-blind)

#007281

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #375eb5;
/* rgb */ color: rgb(55, 94, 181);
/* oklch */ color: oklch(50.1% 0.145 263.8);

Tailwind

colors: {
  custom: {
    50: '#7d8bcc',
    500: '#375eb5',
    950: '#000000',
  },
}

SCSS

$custom: #375eb5;
$custom-light: #7d8bcc;
$custom-dark: #000000;

JSON

{
  "hex": "#375eb5",
  "rgb": {
    "r": 55,
    "g": 94,
    "b": 181
  },
  "hsl": {
    "h": 221.429,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.50076,
    "c": 0.14493,
    "h": 263.8
  },
  "luminance": 0.12154
}

Semantic roles & 50–950 ramp

primary

#375EB5

secondary

#C6B182

accent

#B04BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #375EB5

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

Preview Lab → · Contrast checker → · Palette generator →