#375DC9#375DC9

#375DC9 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.3% C 0.174 H 265.8°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#375DC9
RGB	rgb(55, 93, 201)
HSL	hsl(224, 57%, 50%)
HSV	hsv(224, 73%, 79%)
CMYK	cmyk(72.6%, 53.7%, 0%, 21.2%)
CIE-LAB	lab(42.55, 23.89, -60.14)
CIE-LCH	lch(42.55, 64.71, 291.67°)
OKLab	oklab(51.34% -0.0126 -0.1732)
OKLCH	oklch(51.34% 0.174 265.8)
XYZ	xyz(16.0288, 12.8563, 56.8838)
Luminance	0.1286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375DC9 #C9A337

analogous

#37A6C9 #375DC9 #5A37C9

triadic

#375DC9 #C9375D #5DC937

tetradic

#375DC9 #C937A6 #C9A337 #37C95A

square

#375DC9 #C937A6 #C9A337 #37C95A

split-complementary

#375DC9 #C95A37 #A6C937

monochromatic

#1C3069 #294799 #375DC9 #6784D6 #97ABE3

Accessibility & contrast

On white

5.88

#375DC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#375DC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375DC9

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375DC9	#FFFFFF	#000000	##FFFFFF
##375DC9	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#056BCD

Deuteranopia (green-blind)

#005EC7

Tritanopia (blue-blind)

#00778A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #375dc9;
/* rgb */ color: rgb(55, 93, 201);
/* oklch */ color: oklch(51.3% 0.174 265.8);

Tailwind

colors: {
  custom: {
    50: '#818ada',
    500: '#375dc9',
    950: '#000000',
  },
}

SCSS

$custom: #375dc9;
$custom-light: #818ada;
$custom-dark: #000000;

JSON

{
  "hex": "#375dc9",
  "rgb": {
    "r": 55,
    "g": 93,
    "b": 201
  },
  "hsl": {
    "h": 224.384,
    "s": 57.48,
    "l": 50.196
  },
  "oklch": {
    "l": 0.51338,
    "c": 0.17362,
    "h": 265.8
  },
  "luminance": 0.12858
}

Semantic roles & 50–950 ramp

primary

#375DC9

secondary

#CFBE8D

accent

#B947E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #375DC9

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

Preview Lab → · Contrast checker → · Palette generator →