#3659CE#3659CE

#3659CE is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.9% C 0.185 H 266.9°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#3659CE
RGB	rgb(54, 89, 206)
HSL	hsl(226, 61%, 51%)
HSV	hsv(226, 74%, 81%)
CMYK	cmyk(73.8%, 56.8%, 0%, 19.2%)
CIE-LAB	lab(41.82, 28.18, -64.20)
CIE-LCH	lch(41.82, 70.11, 293.69°)
OKLab	oklab(50.9% -0.0101 -0.1852)
OKLCH	oklch(50.9% 0.185 266.9)
XYZ	xyz(16.2304, 12.3835, 59.9154)
Luminance	0.1239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659CE #CEAB36

analogous

#36A5CE #3659CE #5F36CE

triadic

#3659CE #CE3659 #59CE36

tetradic

#3659CE #CE36A5 #CEAB36 #36CE5F

square

#3659CE #CE36A5 #CEAB36 #36CE5F

split-complementary

#3659CE #CE5F36 #A5CE36

monochromatic

#1B2E6F #2743A0 #3659CE #6782DA #98AAE6

Accessibility & contrast

On white

6.04

#3659CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#3659CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659CE

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659CE	#FFFFFF	#000000	##FFFFFF
##3659CE	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	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: #3659ce;
/* rgb */ color: rgb(54, 89, 206);
/* oklch */ color: oklch(50.9% 0.185 266.9);

Tailwind

colors: {
  custom: {
    50: '#8287de',
    500: '#3659ce',
    950: '#000000',
  },
}

SCSS

$custom: #3659ce;
$custom-light: #8287de;
$custom-dark: #000000;

JSON

{
  "hex": "#3659ce",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 206
  },
  "hsl": {
    "h": 226.184,
    "s": 60.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50895,
    "c": 0.18546,
    "h": 266.9
  },
  "luminance": 0.12385
}

Semantic roles & 50–950 ramp

primary

#3659CE

secondary

#D2C28E

accent

#BF44E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3659CE

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

Preview Lab → · Contrast checker → · Palette generator →