#3758B2#3758B2

#3758B2 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.6% C 0.148 H 265.9°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#3758B2
RGB	rgb(55, 88, 178)
HSL	hsl(224, 53%, 46%)
HSV	hsv(224, 69%, 70%)
CMYK	cmyk(69.1%, 50.6%, 0%, 30.2%)
CIE-LAB	lab(39.59, 18.66, -51.51)
CIE-LCH	lch(39.59, 54.78, 289.91°)
OKLab	oklab(48.59% -0.0105 -0.1478)
OKLCH	oklch(48.59% 0.148 265.9)
XYZ	xyz(13.0984, 11.0047, 43.5447)
Luminance	0.1101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3758B2 #B29137

analogous

#3796B2 #3758B2 #5337B2

triadic

#3758B2 #B23758 #58B237

tetradic

#3758B2 #B23796 #B29137 #37B253

square

#3758B2 #B23796 #B29137 #37B253

split-complementary

#3758B2 #B25337 #96B237

monochromatic

#1A2A54 #294183 #3758B2 #5A79CC #899FDB

Accessibility & contrast

On white

6.56

#3758B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3758B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3758B2

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3758B2	#FFFFFF	#000000	##FFFFFF
##3758B2	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2463B5

Deuteranopia (green-blind)

#0058B0

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3758b2;
/* rgb */ color: rgb(55, 88, 178);
/* oklch */ color: oklch(48.6% 0.148 265.9);

Tailwind

colors: {
  custom: {
    50: '#7c86ca',
    500: '#3758b2',
    950: '#000000',
  },
}

SCSS

$custom: #3758b2;
$custom-light: #7c86ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3758b2",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 178
  },
  "hsl": {
    "h": 223.902,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.48587,
    "c": 0.14823,
    "h": 265.9
  },
  "luminance": 0.11006
}

Semantic roles & 50–950 ramp

primary

#3758B2

secondary

#C5B280

accent

#B54CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3758B2

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

Preview Lab → · Contrast checker → · Palette generator →