#375BCF#375BCF

#375BCF is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.4% C 0.184 H 266.7°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#375BCF
RGB	rgb(55, 91, 207)
HSL	hsl(226, 61%, 51%)
HSV	hsv(226, 73%, 81%)
CMYK	cmyk(73.4%, 56%, 0%, 18.8%)
CIE-LAB	lab(42.46, 27.38, -63.74)
CIE-LCH	lch(42.46, 69.37, 293.24°)
OKLab	oklab(51.41% -0.0106 -0.1838)
OKLCH	oklch(51.41% 0.184 266.7)
XYZ	xyz(16.5752, 12.7976, 60.6160)
Luminance	0.1280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375BCF #CFAB37

analogous

#37A7CF #375BCF #5F37CF

triadic

#375BCF #CF375B #5BCF37

tetradic

#375BCF #CF37A7 #CFAB37 #37CF5F

square

#375BCF #CF37A7 #CFAB37 #37CF5F

split-complementary

#375BCF #CF5F37 #A7CF37

monochromatic

#1B2F71 #2744A2 #375BCF #6883DB #9AACE7

Accessibility & contrast

On white

5.90

#375BCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#375BCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375BCF

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375BCF	#FFFFFF	#000000	##FFFFFF
##375BCF	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD3

Deuteranopia (green-blind)

#005DCD

Tritanopia (blue-blind)

#00788C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #375bcf;
/* rgb */ color: rgb(55, 91, 207);
/* oklch */ color: oklch(51.4% 0.184 266.7);

Tailwind

colors: {
  custom: {
    50: '#8288de',
    500: '#375bcf',
    950: '#000000',
  },
}

SCSS

$custom: #375bcf;
$custom-light: #8288de;
$custom-dark: #000000;

JSON

{
  "hex": "#375bcf",
  "rgb": {
    "r": 55,
    "g": 91,
    "b": 207
  },
  "hsl": {
    "h": 225.789,
    "s": 61.29,
    "l": 51.373
  },
  "oklch": {
    "l": 0.51409,
    "c": 0.18409,
    "h": 266.7
  },
  "luminance": 0.12799
}

Semantic roles & 50–950 ramp

primary

#375BCF

secondary

#D2C38F

accent

#BE43E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #375BCF

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

Preview Lab → · Contrast checker → · Palette generator →