#375BCC#375BCC

#375BCC is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.2% C 0.180 H 266.6°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#375BCC
RGB	rgb(55, 91, 204)
HSL	hsl(226, 59%, 51%)
HSV	hsv(226, 73%, 80%)
CMYK	cmyk(73%, 55.4%, 0%, 20%)
CIE-LAB	lab(42.23, 26.28, -62.37)
CIE-LCH	lch(42.23, 67.68, 292.85°)
OKLab	oklab(51.17% -0.0108 -0.1798)
OKLCH	oklch(51.17% 0.18 266.6)
XYZ	xyz(16.2119, 12.6523, 58.7028)
Luminance	0.1265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375BCC #CCA837

analogous

#37A6CC #375BCC #5D37CC

triadic

#375BCC #CC375B #5BCC37

tetradic

#375BCC #CC37A6 #CCA837 #37CC5D

square

#375BCC #CC37A6 #CCA837 #37CC5D

split-complementary

#375BCC #CC5D37 #A6CC37

monochromatic

#1C2F6D #28459E #375BCC #6883D8 #99ABE5

Accessibility & contrast

On white

5.95

#375BCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#375BCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375BCC

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375BCC	#FFFFFF	#000000	##FFFFFF
##375BCC	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD0

Deuteranopia (green-blind)

#005DCA

Tritanopia (blue-blind)

#00778A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #375bcc;
/* rgb */ color: rgb(55, 91, 204);
/* oklch */ color: oklch(51.2% 0.180 266.6);

Tailwind

colors: {
  custom: {
    50: '#8288dc',
    500: '#375bcc',
    950: '#000000',
  },
}

SCSS

$custom: #375bcc;
$custom-light: #8288dc;
$custom-dark: #000000;

JSON

{
  "hex": "#375bcc",
  "rgb": {
    "r": 55,
    "g": 91,
    "b": 204
  },
  "hsl": {
    "h": 225.503,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.51172,
    "c": 0.18009,
    "h": 266.6
  },
  "luminance": 0.12654
}

Semantic roles & 50–950 ramp

primary

#375BCC

secondary

#D0C08E

accent

#BD45E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #375BCC

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

Preview Lab → · Contrast checker → · Palette generator →