#375DA4#375DA4

#375DA4 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.7% C 0.122 H 261.7°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#375DA4
RGB	rgb(55, 93, 164)
HSL	hsl(219, 50%, 43%)
HSV	hsv(219, 66%, 64%)
CMYK	cmyk(66.5%, 43.3%, 0%, 35.7%)
CIE-LAB	lab(40.11, 10.27, -42.38)
CIE-LCH	lch(40.11, 43.61, 283.62°)
OKLab	oklab(48.7% -0.0176 -0.1209)
OKLCH	oklch(48.7% 0.122 261.7)
XYZ	xyz(12.1884, 11.3201, 36.6574)
Luminance	0.1132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375DA4 #A47E37

analogous

#3793A4 #375DA4 #4837A4

triadic

#375DA4 #A4375D #5DA437

tetradic

#375DA4 #A43793 #A47E37 #37A448

square

#375DA4 #A43793 #A47E37 #37A448

split-complementary

#375DA4 #A44837 #93A437

monochromatic

#182948 #284376 #375DA4 #537BC5 #819ED5

Accessibility & contrast

On white

6.43

#375DA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#375DA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375DA4

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375DA4	#FFFFFF	#000000	##FFFFFF
##375DA4	1.00	6.43	3.26	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C64A7

Deuteranopia (green-blind)

#2A5AA3

Tritanopia (blue-blind)

#006D78

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #375da4;
/* rgb */ color: rgb(55, 93, 164);
/* oklch */ color: oklch(48.7% 0.122 261.7);

Tailwind

colors: {
  custom: {
    50: '#798abf',
    500: '#375da4',
    950: '#000000',
  },
}

SCSS

$custom: #375da4;
$custom-light: #798abf;
$custom-dark: #000000;

JSON

{
  "hex": "#375da4",
  "rgb": {
    "r": 55,
    "g": 93,
    "b": 164
  },
  "hsl": {
    "h": 219.083,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48703,
    "c": 0.12221,
    "h": 261.7
  },
  "luminance": 0.11321
}

Semantic roles & 50–950 ramp

primary

#375DA4

secondary

#BEA679

accent

#A94FD9

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #375DA4

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

Preview Lab → · Contrast checker → · Palette generator →