#375DB3#375DB3

#375DB3 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.7% C 0.143 H 264.0°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#375DB3
RGB	rgb(55, 93, 179)
HSL	hsl(222, 53%, 46%)
HSV	hsv(222, 69%, 70%)
CMYK	cmyk(69.3%, 48%, 0%, 29.8%)
CIE-LAB	lab(41.05, 15.78, -49.75)
CIE-LCH	lch(41.05, 52.19, 287.60°)
OKLab	oklab(49.72% -0.015 -0.1426)
OKLCH	oklch(49.72% 0.143 264)
XYZ	xyz(13.6237, 11.8942, 44.2169)
Luminance	0.1190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375DB3 #B38D37

analogous

#379BB3 #375DB3 #4F37B3

triadic

#375DB3 #B3375D #5DB337

tetradic

#375DB3 #B3379B #B38D37 #37B34F

square

#375DB3 #B3379B #B38D37 #37B34F

split-complementary

#375DB3 #B34F37 #9BB337

monochromatic

#1A2C55 #294584 #375DB3 #5B7ECD #8AA2DB

Accessibility & contrast

On white

6.21

#375DB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#375DB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375DB3

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375DB3	#FFFFFF	#000000	##FFFFFF
##375DB3	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F67B6

Deuteranopia (green-blind)

#115BB1

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #375db3;
/* rgb */ color: rgb(55, 93, 179);
/* oklch */ color: oklch(49.7% 0.143 264.0);

Tailwind

colors: {
  custom: {
    50: '#7c8aca',
    500: '#375db3',
    950: '#000000',
  },
}

SCSS

$custom: #375db3;
$custom-light: #7c8aca;
$custom-dark: #000000;

JSON

{
  "hex": "#375db3",
  "rgb": {
    "r": 55,
    "g": 93,
    "b": 179
  },
  "hsl": {
    "h": 221.613,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.49721,
    "c": 0.14338,
    "h": 264
  },
  "luminance": 0.11896
}

Semantic roles & 50–950 ramp

primary

#375DB3

secondary

#C5B081

accent

#B04BDC

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #375DB3

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

Preview Lab → · Contrast checker → · Palette generator →