#375BB7#375BB7

#375BB7 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.6% C 0.151 H 265.2°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#375BB7
RGB	rgb(55, 91, 183)
HSL	hsl(223, 54%, 47%)
HSV	hsv(223, 70%, 72%)
CMYK	cmyk(69.9%, 50.3%, 0%, 28.2%)
CIE-LAB	lab(40.75, 18.55, -52.57)
CIE-LCH	lch(40.75, 55.74, 289.44°)
OKLab	oklab(49.58% -0.0127 -0.1509)
OKLCH	oklch(49.58% 0.151 265.2)
XYZ	xyz(13.8609, 11.7119, 46.3207)
Luminance	0.1171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375BB7 #B79337

analogous

#379BB7 #375BB7 #5337B7

triadic

#375BB7 #B7375B #5BB737

tetradic

#375BB7 #B7379B #B79337 #37B753

square

#375BB7 #B7379B #B79337 #37B753

split-complementary

#375BB7 #B75337 #9BB737

monochromatic

#1B2C59 #294488 #375BB7 #5D7DCE #8CA3DC

Accessibility & contrast

On white

6.28

#375BB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#375BB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375BB7

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375BB7	#FFFFFF	#000000	##FFFFFF
##375BB7	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2566BA

Deuteranopia (green-blind)

#005BB5

Tritanopia (blue-blind)

#007180

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #375bb7;
/* rgb */ color: rgb(55, 91, 183);
/* oklch */ color: oklch(49.6% 0.151 265.2);

Tailwind

colors: {
  custom: {
    50: '#7d88cd',
    500: '#375bb7',
    950: '#000000',
  },
}

SCSS

$custom: #375bb7;
$custom-light: #7d88cd;
$custom-dark: #000000;

JSON

{
  "hex": "#375bb7",
  "rgb": {
    "r": 55,
    "g": 91,
    "b": 183
  },
  "hsl": {
    "h": 223.125,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.49582,
    "c": 0.15144,
    "h": 265.2
  },
  "luminance": 0.11713
}

Semantic roles & 50–950 ramp

primary

#375BB7

secondary

#C7B483

accent

#B44BDD

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #375BB7

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

Preview Lab → · Contrast checker → · Palette generator →