#375FB4#375FB4

#375FB4 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.2% C 0.142 H 263.3°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#375FB4
RGB	rgb(55, 95, 180)
HSL	hsl(221, 53%, 46%)
HSV	hsv(221, 69%, 71%)
CMYK	cmyk(69.4%, 47.2%, 0%, 29.4%)
CIE-LAB	lab(41.67, 14.85, -49.33)
CIE-LCH	lch(41.67, 51.52, 286.76°)
OKLab	oklab(50.22% -0.0167 -0.1413)
OKLCH	oklch(50.22% 0.142 263.3)
XYZ	xyz(13.9031, 12.2905, 44.8108)
Luminance	0.1229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375FB4 #B48C37

analogous

#379DB4 #375FB4 #4D37B4

triadic

#375FB4 #B4375F #5FB437

tetradic

#375FB4 #B4379D #B48C37 #37B44D

square

#375FB4 #B4379D #B48C37 #37B44D

split-complementary

#375FB4 #B44D37 #9DB437

monochromatic

#1A2E56 #294685 #375FB4 #5B80CD #8AA4DB

Accessibility & contrast

On white

6.07

#375FB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#375FB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375FB4

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375FB4	#FFFFFF	#000000	##FFFFFF
##375FB4	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3368B7

Deuteranopia (green-blind)

#175DB2

Tritanopia (blue-blind)

#007381

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #375fb4;
/* rgb */ color: rgb(55, 95, 180);
/* oklch */ color: oklch(50.2% 0.142 263.3);

Tailwind

colors: {
  custom: {
    50: '#7c8bcb',
    500: '#375fb4',
    950: '#000000',
  },
}

SCSS

$custom: #375fb4;
$custom-light: #7c8bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#375fb4",
  "rgb": {
    "r": 55,
    "g": 95,
    "b": 180
  },
  "hsl": {
    "h": 220.8,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.50222,
    "c": 0.14231,
    "h": 263.3
  },
  "luminance": 0.12292
}

Semantic roles & 50–950 ramp

primary

#375FB4

secondary

#C6B081

accent

#AE4BDD

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #375FB4

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

Preview Lab → · Contrast checker → · Palette generator →