#3659AE#3659AE

#3659AE is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.5% C 0.142 H 264.8°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3659AE
RGB	rgb(54, 89, 174)
HSL	hsl(223, 53%, 45%)
HSV	hsv(223, 69%, 68%)
CMYK	cmyk(69%, 48.9%, 0%, 31.8%)
CIE-LAB	lab(39.55, 16.37, -49.21)
CIE-LCH	lch(39.55, 51.86, 288.40°)
OKLab	oklab(48.46% -0.0129 -0.1411)
OKLCH	oklch(48.46% 0.142 264.8)
XYZ	xyz(12.7310, 10.9838, 41.4853)
Luminance	0.1099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659AE #AE8B36

analogous

#3695AE #3659AE #4F36AE

triadic

#3659AE #AE3659 #59AE36

tetradic

#3659AE #AE3695 #AE8B36 #36AE4F

square

#3659AE #AE3695 #AE8B36 #36AE4F

split-complementary

#3659AE #AE4F36 #95AE36

monochromatic

#192951 #28417F #3659AE #5678CB #859ED9

Accessibility & contrast

On white

6.57

#3659AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3659AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659AE

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659AE	#FFFFFF	#000000	##FFFFFF
##3659AE	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B63B1

Deuteranopia (green-blind)

#0A58AC

Tritanopia (blue-blind)

#006D7B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3659ae;
/* rgb */ color: rgb(54, 89, 174);
/* oklch */ color: oklch(48.5% 0.142 264.8);

Tailwind

colors: {
  custom: {
    50: '#7b87c7',
    500: '#3659ae',
    950: '#000000',
  },
}

SCSS

$custom: #3659ae;
$custom-light: #7b87c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3659ae",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 174
  },
  "hsl": {
    "h": 222.5,
    "s": 52.632,
    "l": 44.706
  },
  "oklch": {
    "l": 0.48462,
    "c": 0.14168,
    "h": 264.8
  },
  "luminance": 0.10985
}

Semantic roles & 50–950 ramp

primary

#3659AE

secondary

#C3AE7D

accent

#B24CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3659AE

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

Preview Lab → · Contrast checker → · Palette generator →