#3759CE#3759CE

#3759CE is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.9% C 0.185 H 267.1°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#3759CE
RGB	rgb(55, 89, 206)
HSL	hsl(226, 61%, 51%)
HSV	hsv(226, 73%, 81%)
CMYK	cmyk(73.3%, 56.8%, 0%, 19.2%)
CIE-LAB	lab(41.86, 28.30, -64.13)
CIE-LCH	lch(41.86, 70.10, 293.81°)
OKLab	oklab(50.94% -0.0092 -0.185)
OKLCH	oklch(50.94% 0.185 267.1)
XYZ	xyz(16.2846, 12.4115, 59.9180)
Luminance	0.1241 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759CE #CEAC37

analogous

#37A4CE #3759CE #6037CE

triadic

#3759CE #CE3759 #59CE37

tetradic

#3759CE #CE37A4 #CEAC37 #37CE60

square

#3759CE #CE37A4 #CEAC37 #37CE60

split-complementary

#3759CE #CE6037 #A4CE37

monochromatic

#1B2E6F #2743A0 #3759CE #6882DA #99ABE6

Accessibility & contrast

On white

6.03

#3759CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#3759CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759CE

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759CE	#FFFFFF	#000000	##FFFFFF
##3759CE	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD2

Deuteranopia (green-blind)

#005CCC

Tritanopia (blue-blind)

#00768B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3759ce;
/* rgb */ color: rgb(55, 89, 206);
/* oklch */ color: oklch(50.9% 0.185 267.1);

Tailwind

colors: {
  custom: {
    50: '#8287de',
    500: '#3759ce',
    950: '#000000',
  },
}

SCSS

$custom: #3759ce;
$custom-light: #8287de;
$custom-dark: #000000;

JSON

{
  "hex": "#3759ce",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 206
  },
  "hsl": {
    "h": 226.49,
    "s": 60.643,
    "l": 51.176
  },
  "oklch": {
    "l": 0.50939,
    "c": 0.18519,
    "h": 267.1
  },
  "luminance": 0.12413
}

Semantic roles & 50–950 ramp

primary

#3759CE

secondary

#D2C38F

accent

#C044E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3759CE

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

Preview Lab → · Contrast checker → · Palette generator →