#375DB5#375DB5

#375DB5 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 49.9% C 0.146 H 264.2°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#375DB5
RGB	rgb(55, 93, 181)
HSL	hsl(222, 53%, 46%)
HSV	hsv(222, 70%, 71%)
CMYK	cmyk(69.6%, 48.6%, 0%, 29%)
CIE-LAB	lab(41.18, 16.51, -50.71)
CIE-LCH	lch(41.18, 53.33, 288.04°)
OKLab	oklab(49.86% -0.0147 -0.1454)
OKLCH	oklch(49.86% 0.146 264.2)
XYZ	xyz(13.8275, 11.9757, 45.2899)
Luminance	0.1198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375DB5 #B58F37

analogous

#379CB5 #375DB5 #5037B5

triadic

#375DB5 #B5375D #5DB537

tetradic

#375DB5 #B5379C #B58F37 #37B550

square

#375DB5 #B5379C #B58F37 #37B550

split-complementary

#375DB5 #B55037 #9CB537

monochromatic

#1A2D57 #294586 #375DB5 #5C7ECD #8BA3DC

Accessibility & contrast

On white

6.18

#375DB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#375DB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375DB5

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375DB5	#FFFFFF	#000000	##FFFFFF
##375DB5	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D67B8

Deuteranopia (green-blind)

#0A5CB3

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #375db5;
/* rgb */ color: rgb(55, 93, 181);
/* oklch */ color: oklch(49.9% 0.146 264.2);

Tailwind

colors: {
  custom: {
    50: '#7d8acc',
    500: '#375db5',
    950: '#000000',
  },
}

SCSS

$custom: #375db5;
$custom-light: #7d8acc;
$custom-dark: #000000;

JSON

{
  "hex": "#375db5",
  "rgb": {
    "r": 55,
    "g": 93,
    "b": 181
  },
  "hsl": {
    "h": 221.905,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.49862,
    "c": 0.14616,
    "h": 264.2
  },
  "luminance": 0.11977
}

Semantic roles & 50–950 ramp

primary

#375DB5

secondary

#C6B182

accent

#B14BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #375DB5

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

Preview Lab → · Contrast checker → · Palette generator →