#375FD3#375FD3

#375FD3 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.5% C 0.185 H 265.8°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#375FD3
RGB	rgb(55, 95, 211)
HSL	hsl(225, 64%, 52%)
HSV	hsv(225, 74%, 83%)
CMYK	cmyk(73.9%, 55%, 0%, 17.3%)
CIE-LAB	lab(43.80, 26.28, -63.86)
CIE-LCH	lch(43.80, 69.06, 292.37°)
OKLab	oklab(52.51% -0.0134 -0.1841)
OKLCH	oklch(52.51% 0.185 265.8)
XYZ	xyz(17.4215, 13.6979, 63.3412)
Luminance	0.1370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375FD3 #D3AB37

analogous

#37ADD3 #375FD3 #5D37D3

triadic

#375FD3 #D3375F #5FD337

tetradic

#375FD3 #D337AD #D3AB37 #37D35D

square

#375FD3 #D337AD #D3AB37 #37D35D

split-complementary

#375FD3 #D35D37 #ADD337

monochromatic

#1A3176 #2547A8 #375FD3 #6987DE #9BAFE9

Accessibility & contrast

On white

5.61

#375FD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#375FD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375FD3

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375FD3	#FFFFFF	#000000	##FFFFFF
##375FD3	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FD7

Deuteranopia (green-blind)

#0061D1

Tritanopia (blue-blind)

#007B90

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #375fd3;
/* rgb */ color: rgb(55, 95, 211);
/* oklch */ color: oklch(52.5% 0.185 265.8);

Tailwind

colors: {
  custom: {
    50: '#838be1',
    500: '#375fd3',
    950: '#000000',
  },
}

SCSS

$custom: #375fd3;
$custom-light: #838be1;
$custom-dark: #000000;

JSON

{
  "hex": "#375fd3",
  "rgb": {
    "r": 55,
    "g": 95,
    "b": 211
  },
  "hsl": {
    "h": 224.615,
    "s": 63.934,
    "l": 52.157
  },
  "oklch": {
    "l": 0.5251,
    "c": 0.18456,
    "h": 265.8
  },
  "luminance": 0.137
}

Semantic roles & 50–950 ramp

primary

#375FD3

secondary

#D5C391

accent

#BC41E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #375FD3

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

Preview Lab → · Contrast checker → · Palette generator →