#3759C0#3759C0

#3759C0 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.8% C 0.166 H 266.5°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#3759C0
RGB	rgb(55, 89, 192)
HSL	hsl(225, 55%, 48%)
HSV	hsv(225, 71%, 75%)
CMYK	cmyk(71.4%, 53.6%, 0%, 24.7%)
CIE-LAB	lab(40.83, 23.16, -57.69)
CIE-LCH	lch(40.83, 62.17, 291.88°)
OKLab	oklab(49.84% -0.0101 -0.166)
OKLCH	oklch(49.84% 0.166 266.5)
XYZ	xyz(14.6590, 11.7612, 51.3565)
Luminance	0.1176 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759C0 #C09E37

analogous

#379EC0 #3759C0 #5937C0

triadic

#3759C0 #C03759 #59C037

tetradic

#3759C0 #C0379E #C09E37 #37C059

square

#3759C0 #C0379E #C09E37 #37C059

split-complementary

#3759C0 #C05937 #9EC037

monochromatic

#1C2D61 #294390 #3759C0 #627ED2 #92A5E0

Accessibility & contrast

On white

6.26

#3759C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#3759C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759C0

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759C0	#FFFFFF	#000000	##FFFFFF
##3759C0	1.00	6.26	3.35	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A67C4

Deuteranopia (green-blind)

#005ABE

Tritanopia (blue-blind)

#007284

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3759c0;
/* rgb */ color: rgb(55, 89, 192);
/* oklch */ color: oklch(49.8% 0.166 266.5);

Tailwind

colors: {
  custom: {
    50: '#7f87d4',
    500: '#3759c0',
    950: '#000000',
  },
}

SCSS

$custom: #3759c0;
$custom-light: #7f87d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3759c0",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 192
  },
  "hsl": {
    "h": 225.109,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.49841,
    "c": 0.16633,
    "h": 266.5
  },
  "luminance": 0.11763
}

Semantic roles & 50–950 ramp

primary

#3759C0

secondary

#CBBA88

accent

#BA49DF

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3759C0

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

Preview Lab → · Contrast checker → · Palette generator →