#375DD4#375DD4

#375DD4 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.2% C 0.188 H 266.4°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#375DD4
RGB	rgb(55, 93, 212)
HSL	hsl(225, 65%, 52%)
HSV	hsv(225, 74%, 83%)
CMYK	cmyk(74.1%, 56.1%, 0%, 16.9%)
CIE-LAB	lab(43.35, 27.93, -65.16)
CIE-LCH	lch(43.35, 70.89, 293.20°)
OKLab	oklab(52.2% -0.0119 -0.1879)
OKLCH	oklch(52.2% 0.188 266.4)
XYZ	xyz(17.3694, 13.3925, 63.9442)
Luminance	0.1339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375DD4 #D4AE37

analogous

#37ABD4 #375DD4 #6037D4

triadic

#375DD4 #D4375D #5DD437

tetradic

#375DD4 #D437AB #D4AE37 #37D460

square

#375DD4 #D437AB #D4AE37 #37D460

split-complementary

#375DD4 #D46037 #ABD437

monochromatic

#1A3077 #2445A9 #375DD4 #6986DF #9CAFEA

Accessibility & contrast

On white

5.71

#375DD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#375DD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375DD4

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375DD4	#FFFFFF	#000000	##FFFFFF
##375DD4	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED8

Deuteranopia (green-blind)

#005FD2

Tritanopia (blue-blind)

#007A8F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #375dd4;
/* rgb */ color: rgb(55, 93, 212);
/* oklch */ color: oklch(52.2% 0.188 266.4);

Tailwind

colors: {
  custom: {
    50: '#838ae2',
    500: '#375dd4',
    950: '#000000',
  },
}

SCSS

$custom: #375dd4;
$custom-light: #838ae2;
$custom-dark: #000000;

JSON

{
  "hex": "#375dd4",
  "rgb": {
    "r": 55,
    "g": 93,
    "b": 212
  },
  "hsl": {
    "h": 225.478,
    "s": 64.609,
    "l": 52.353
  },
  "oklch": {
    "l": 0.52196,
    "c": 0.1883,
    "h": 266.4
  },
  "luminance": 0.13394
}

Semantic roles & 50–950 ramp

primary

#375DD4

secondary

#D6C591

accent

#BF40E8

background

#F8F8FE

surface

#F0F0FC

border

#CBCBD5

text

#0C0B15

muted

#7D7C84

Preview Lab

Preview with #375DD4

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

Preview Lab → · Contrast checker → · Palette generator →