#375DB2#375DB2

#375DB2 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.7% C 0.142 H 263.9°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#375DB2
RGB	rgb(55, 93, 178)
HSL	hsl(221, 53%, 46%)
HSV	hsv(221, 69%, 70%)
CMYK	cmyk(69.1%, 47.8%, 0%, 30.2%)
CIE-LAB	lab(40.98, 15.41, -49.26)
CIE-LCH	lch(40.98, 51.62, 287.37°)
OKLab	oklab(49.65% -0.0152 -0.1412)
OKLCH	oklch(49.65% 0.142 263.9)
XYZ	xyz(13.5230, 11.8539, 43.6862)
Luminance	0.1186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375DB2 #B28C37

analogous

#379BB2 #375DB2 #4E37B2

triadic

#375DB2 #B2375D #5DB237

tetradic

#375DB2 #B2379B #B28C37 #37B24E

square

#375DB2 #B2379B #B28C37 #37B24E

split-complementary

#375DB2 #B24E37 #9BB237

monochromatic

#1A2C54 #294583 #375DB2 #5A7DCC #89A2DB

Accessibility & contrast

On white

6.23

#375DB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#375DB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375DB2

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375DB2	#FFFFFF	#000000	##FFFFFF
##375DB2	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3067B5

Deuteranopia (green-blind)

#135BB0

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #375db2;
/* rgb */ color: rgb(55, 93, 178);
/* oklch */ color: oklch(49.7% 0.142 263.9);

Tailwind

colors: {
  custom: {
    50: '#7c8ac9',
    500: '#375db2',
    950: '#000000',
  },
}

SCSS

$custom: #375db2;
$custom-light: #7c8ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#375db2",
  "rgb": {
    "r": 55,
    "g": 93,
    "b": 178
  },
  "hsl": {
    "h": 221.463,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.49651,
    "c": 0.14197,
    "h": 263.9
  },
  "luminance": 0.11855
}

Semantic roles & 50–950 ramp

primary

#375DB2

secondary

#C5AF80

accent

#B04CDC

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #375DB2

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

Preview Lab → · Contrast checker → · Palette generator →