#375CB3#375CB3

#375CB3 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.5% C 0.145 H 264.4°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#375CB3
RGB	rgb(55, 92, 179)
HSL	hsl(222, 53%, 46%)
HSV	hsv(222, 69%, 70%)
CMYK	cmyk(69.3%, 48.6%, 0%, 29.8%)
CIE-LAB	lab(40.77, 16.43, -50.20)
CIE-LCH	lch(40.77, 52.82, 288.12°)
OKLab	oklab(49.51% -0.0141 -0.1439)
OKLCH	oklch(49.51% 0.145 264.4)
XYZ	xyz(13.5365, 11.7198, 44.1879)
Luminance	0.1172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375CB3 #B38E37

analogous

#379AB3 #375CB3 #5037B3

triadic

#375CB3 #B3375C #5CB337

tetradic

#375CB3 #B3379A #B38E37 #37B350

square

#375CB3 #B3379A #B38E37 #37B350

split-complementary

#375CB3 #B35037 #9AB337

monochromatic

#1A2C55 #294484 #375CB3 #5B7DCD #8AA2DB

Accessibility & contrast

On white

6.28

#375CB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#375CB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375CB3

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375CB3	#FFFFFF	#000000	##FFFFFF
##375CB3	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D66B6

Deuteranopia (green-blind)

#0B5BB1

Tritanopia (blue-blind)

#00707F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #375cb3;
/* rgb */ color: rgb(55, 92, 179);
/* oklch */ color: oklch(49.5% 0.145 264.4);

Tailwind

colors: {
  custom: {
    50: '#7c89ca',
    500: '#375cb3',
    950: '#000000',
  },
}

SCSS

$custom: #375cb3;
$custom-light: #7c89ca;
$custom-dark: #000000;

JSON

{
  "hex": "#375cb3",
  "rgb": {
    "r": 55,
    "g": 92,
    "b": 179
  },
  "hsl": {
    "h": 222.097,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.49507,
    "c": 0.14462,
    "h": 264.4
  },
  "luminance": 0.11721
}

Semantic roles & 50–950 ramp

primary

#375CB3

secondary

#C5B181

accent

#B14BDC

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #375CB3

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

Preview Lab → · Contrast checker → · Palette generator →