#375DA3#375DA3

#375DA3 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.6% C 0.121 H 261.5°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#375DA3
RGB	rgb(55, 93, 163)
HSL	hsl(219, 50%, 43%)
HSV	hsv(219, 66%, 64%)
CMYK	cmyk(66.3%, 42.9%, 0%, 36.1%)
CIE-LAB	lab(40.05, 9.90, -41.88)
CIE-LCH	lch(40.05, 43.04, 283.30°)
OKLab	oklab(48.64% -0.0178 -0.1195)
OKLCH	oklch(48.64% 0.121 261.5)
XYZ	xyz(12.0984, 11.2841, 36.1837)
Luminance	0.1129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375DA3 #A37D37

analogous

#3793A3 #375DA3 #4737A3

triadic

#375DA3 #A3375D #5DA337

tetradic

#375DA3 #A33793 #A37D37 #37A347

square

#375DA3 #A33793 #A37D37 #37A347

split-complementary

#375DA3 #A34737 #93A337

monochromatic

#182947 #284375 #375DA3 #527BC5 #809ED4

Accessibility & contrast

On white

6.45

#375DA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#375DA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375DA3

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375DA3	#FFFFFF	#000000	##FFFFFF
##375DA3	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D64A6

Deuteranopia (green-blind)

#2C5AA2

Tritanopia (blue-blind)

#006D78

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #375da3;
/* rgb */ color: rgb(55, 93, 163);
/* oklch */ color: oklch(48.6% 0.121 261.5);

Tailwind

colors: {
  custom: {
    50: '#798abf',
    500: '#375da3',
    950: '#000000',
  },
}

SCSS

$custom: #375da3;
$custom-light: #798abf;
$custom-dark: #000000;

JSON

{
  "hex": "#375da3",
  "rgb": {
    "r": 55,
    "g": 93,
    "b": 163
  },
  "hsl": {
    "h": 218.889,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.48638,
    "c": 0.12079,
    "h": 261.5
  },
  "luminance": 0.11285
}

Semantic roles & 50–950 ramp

primary

#375DA3

secondary

#BEA578

accent

#A84FD9

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #375DA3

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

Preview Lab → · Contrast checker → · Palette generator →