#3659AF#3659AF

#3659AF is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.5% C 0.143 H 264.9°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#3659AF
RGB	rgb(54, 89, 175)
HSL	hsl(223, 53%, 45%)
HSV	hsv(223, 69%, 69%)
CMYK	cmyk(69.1%, 49.1%, 0%, 31.4%)
CIE-LAB	lab(39.62, 16.74, -49.69)
CIE-LCH	lch(39.62, 52.44, 288.62°)
OKLab	oklab(48.53% -0.0127 -0.1425)
OKLCH	oklch(48.53% 0.143 264.9)
XYZ	xyz(12.8289, 11.0229, 42.0007)
Luminance	0.1102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659AF #AF8C36

analogous

#3695AF #3659AF #5036AF

triadic

#3659AF #AF3659 #59AF36

tetradic

#3659AF #AF3695 #AF8C36 #36AF50

square

#3659AF #AF3695 #AF8C36 #36AF50

split-complementary

#3659AF #AF5036 #95AF36

monochromatic

#192951 #284180 #3659AF #5779CB #869EDA

Accessibility & contrast

On white

6.55

#3659AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3659AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659AF

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659AF	#FFFFFF	#000000	##FFFFFF
##3659AF	1.00	6.55	3.20	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A63B2

Deuteranopia (green-blind)

#0658AD

Tritanopia (blue-blind)

#006D7B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3659af;
/* rgb */ color: rgb(54, 89, 175);
/* oklch */ color: oklch(48.5% 0.143 264.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3659af",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 175
  },
  "hsl": {
    "h": 222.645,
    "s": 52.838,
    "l": 44.902
  },
  "oklch": {
    "l": 0.48533,
    "c": 0.14308,
    "h": 264.9
  },
  "luminance": 0.11024
}

Semantic roles & 50–950 ramp

primary

#3659AF

secondary

#C3AF7D

accent

#B24CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3659AF

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

Preview Lab → · Contrast checker → · Palette generator →