#3759D2#3759D2

#3759D2 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.3% C 0.190 H 267.3°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#3759D2
RGB	rgb(55, 89, 210)
HSL	hsl(227, 63%, 52%)
HSV	hsv(227, 74%, 82%)
CMYK	cmyk(73.8%, 57.6%, 0%, 17.6%)
CIE-LAB	lab(42.17, 29.75, -65.94)
CIE-LCH	lch(42.17, 72.34, 294.29°)
OKLab	oklab(51.26% -0.0091 -0.1903)
OKLCH	oklch(51.26% 0.19 267.3)
XYZ	xyz(16.7767, 12.6083, 62.5097)
Luminance	0.1261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759D2 #D2B037

analogous

#37A6D2 #3759D2 #6337D2

triadic

#3759D2 #D23759 #59D237

tetradic

#3759D2 #D237A6 #D2B037 #37D263

square

#3759D2 #D237A6 #D2B037 #37D263

split-complementary

#3759D2 #D26337 #A6D237

monochromatic

#1A2E74 #2542A6 #3759D2 #6982DD #9BACE8

Accessibility & contrast

On white

5.96

#3759D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#3759D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759D2

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759D2	#FFFFFF	#000000	##FFFFFF
##3759D2	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD6

Deuteranopia (green-blind)

#005DD0

Tritanopia (blue-blind)

#00778D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3759d2;
/* rgb */ color: rgb(55, 89, 210);
/* oklch */ color: oklch(51.3% 0.190 267.3);

Tailwind

colors: {
  custom: {
    50: '#8387e1',
    500: '#3759d2',
    950: '#000000',
  },
}

SCSS

$custom: #3759d2;
$custom-light: #8387e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3759d2",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 210
  },
  "hsl": {
    "h": 226.839,
    "s": 63.265,
    "l": 51.961
  },
  "oklch": {
    "l": 0.51263,
    "c": 0.19048,
    "h": 267.3
  },
  "luminance": 0.1261
}

Semantic roles & 50–950 ramp

primary

#3759D2

secondary

#D4C590

accent

#C241E6

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3759D2

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

Preview Lab → · Contrast checker → · Palette generator →