#375FB3#375FB3

#375FB3 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.2% C 0.141 H 263.1°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#375FB3
RGB	rgb(55, 95, 179)
HSL	hsl(221, 53%, 46%)
HSV	hsv(221, 69%, 70%)
CMYK	cmyk(69.3%, 46.9%, 0%, 29.8%)
CIE-LAB	lab(41.61, 14.48, -48.84)
CIE-LCH	lch(41.61, 50.95, 286.52°)
OKLab	oklab(50.15% -0.0169 -0.1399)
OKLCH	oklch(50.15% 0.141 263.1)
XYZ	xyz(13.8016, 12.2499, 44.2762)
Luminance	0.1225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375FB3 #B38B37

analogous

#379DB3 #375FB3 #4D37B3

triadic

#375FB3 #B3375F #5FB337

tetradic

#375FB3 #B3379D #B38B37 #37B34D

square

#375FB3 #B3379D #B38B37 #37B34D

split-complementary

#375FB3 #B34D37 #9DB337

monochromatic

#1A2D55 #294684 #375FB3 #5B7FCD #8AA4DB

Accessibility & contrast

On white

6.09

#375FB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#375FB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375FB3

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375FB3	#FFFFFF	#000000	##FFFFFF
##375FB3	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)

#3468B6

Deuteranopia (green-blind)

#195DB1

Tritanopia (blue-blind)

#007380

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #375fb3;
/* rgb */ color: rgb(55, 95, 179);
/* oklch */ color: oklch(50.2% 0.141 263.1);

Tailwind

colors: {
  custom: {
    50: '#7c8bca',
    500: '#375fb3',
    950: '#000000',
  },
}

SCSS

$custom: #375fb3;
$custom-light: #7c8bca;
$custom-dark: #000000;

JSON

{
  "hex": "#375fb3",
  "rgb": {
    "r": 55,
    "g": 95,
    "b": 179
  },
  "hsl": {
    "h": 220.645,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.50152,
    "c": 0.1409,
    "h": 263.1
  },
  "luminance": 0.12251
}

Semantic roles & 50–950 ramp

primary

#375FB3

secondary

#C5AF81

accent

#AE4BDC

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #375FB3

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

Preview Lab → · Contrast checker → · Palette generator →