#375AD5#375AD5

#375AD5 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.7% C 0.193 H 267.1°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#375AD5
RGB	rgb(55, 90, 213)
HSL	hsl(227, 65%, 53%)
HSV	hsv(227, 74%, 84%)
CMYK	cmyk(74.2%, 57.7%, 0%, 16.5%)
CIE-LAB	lab(42.65, 30.21, -66.87)
CIE-LCH	lch(42.65, 73.37, 294.31°)
OKLab	oklab(51.7% -0.0097 -0.193)
OKLCH	oklch(51.7% 0.193 267.1)
XYZ	xyz(17.2378, 12.9268, 64.5245)
Luminance	0.1293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375AD5 #D5B237

analogous

#37A9D5 #375AD5 #6337D5

triadic

#375AD5 #D5375A #5AD537

tetradic

#375AD5 #D537A9 #D5B237 #37D563

square

#375AD5 #D537A9 #D5B237 #37D563

split-complementary

#375AD5 #D56337 #A9D537

monochromatic

#192E78 #2442AB #375AD5 #6A84E0 #9CADEA

Accessibility & contrast

On white

5.86

#375AD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#375AD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375AD5

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375AD5	#FFFFFF	#000000	##FFFFFF
##375AD5	1.00	5.86	3.59	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD9

Deuteranopia (green-blind)

#005ED3

Tritanopia (blue-blind)

#00798F

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #375ad5;
/* rgb */ color: rgb(55, 90, 213);
/* oklch */ color: oklch(51.7% 0.193 267.1);

Tailwind

colors: {
  custom: {
    50: '#8488e3',
    500: '#375ad5',
    950: '#000000',
  },
}

SCSS

$custom: #375ad5;
$custom-light: #8488e3;
$custom-dark: #000000;

JSON

{
  "hex": "#375ad5",
  "rgb": {
    "r": 55,
    "g": 90,
    "b": 213
  },
  "hsl": {
    "h": 226.709,
    "s": 65.289,
    "l": 52.549
  },
  "oklch": {
    "l": 0.51698,
    "c": 0.19322,
    "h": 267.1
  },
  "luminance": 0.12929
}

Semantic roles & 50–950 ramp

primary

#375AD5

secondary

#D6C792

accent

#C340E8

background

#F8F8FE

surface

#F0EFFC

border

#CBCAD5

text

#0C0B16

muted

#7D7C84

Preview Lab

Preview with #375AD5

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

Preview Lab → · Contrast checker → · Palette generator →