#3659CD#3659CD

#3659CD is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.8% C 0.184 H 266.8°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#3659CD
RGB	rgb(54, 89, 205)
HSL	hsl(226, 60%, 51%)
HSV	hsv(226, 74%, 80%)
CMYK	cmyk(73.7%, 56.6%, 0%, 19.6%)
CIE-LAB	lab(41.74, 27.81, -63.75)
CIE-LCH	lch(41.74, 69.55, 293.57°)
OKLab	oklab(50.82% -0.0101 -0.1839)
OKLCH	oklch(50.82% 0.184 266.8)
XYZ	xyz(16.1093, 12.3351, 59.2777)
Luminance	0.1234 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659CD #CDAA36

analogous

#36A4CD #3659CD #5E36CD

triadic

#3659CD #CD3659 #59CD36

tetradic

#3659CD #CD36A4 #CDAA36 #36CD5E

square

#3659CD #CD36A4 #CDAA36 #36CD5E

split-complementary

#3659CD #CD5E36 #A4CD36

monochromatic

#1B2E6D #27439E #3659CD #6781D9 #98AAE5

Accessibility & contrast

On white

6.06

#3659CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#3659CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659CD

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659CD	#FFFFFF	#000000	##FFFFFF
##3659CD	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD1

Deuteranopia (green-blind)

#005CCB

Tritanopia (blue-blind)

#00768A

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3659cd;
/* rgb */ color: rgb(54, 89, 205);
/* oklch */ color: oklch(50.8% 0.184 266.8);

Tailwind

colors: {
  custom: {
    50: '#8287dd',
    500: '#3659cd',
    950: '#000000',
  },
}

SCSS

$custom: #3659cd;
$custom-light: #8287dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3659cd",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 205
  },
  "hsl": {
    "h": 226.093,
    "s": 60.159,
    "l": 50.784
  },
  "oklch": {
    "l": 0.50815,
    "c": 0.18414,
    "h": 266.8
  },
  "luminance": 0.12337
}

Semantic roles & 50–950 ramp

primary

#3659CD

secondary

#D1C18E

accent

#BE44E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3659CD

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

Preview Lab → · Contrast checker → · Palette generator →