#3659B2#3659B2

#3659B2 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.7% C 0.147 H 265.2°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#3659B2
RGB	rgb(54, 89, 178)
HSL	hsl(223, 53%, 45%)
HSV	hsv(223, 70%, 70%)
CMYK	cmyk(69.7%, 50%, 0%, 30.2%)
CIE-LAB	lab(39.82, 17.85, -51.14)
CIE-LCH	lch(39.82, 54.17, 289.24°)
OKLab	oklab(48.75% -0.0123 -0.1468)
OKLCH	oklch(48.75% 0.147 265.2)
XYZ	xyz(13.1268, 11.1421, 43.5697)
Luminance	0.1114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659B2 #B28F36

analogous

#3697B2 #3659B2 #5136B2

triadic

#3659B2 #B23659 #59B236

tetradic

#3659B2 #B23697 #B28F36 #36B251

square

#3659B2 #B23697 #B28F36 #36B251

split-complementary

#3659B2 #B25136 #97B236

monochromatic

#1A2A54 #284283 #3659B2 #5979CD #889FDB

Accessibility & contrast

On white

6.50

#3659B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3659B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659B2

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659B2	#FFFFFF	#000000	##FFFFFF
##3659B2	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2664B5

Deuteranopia (green-blind)

#0058B0

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3659b2;
/* rgb */ color: rgb(54, 89, 178);
/* oklch */ color: oklch(48.7% 0.147 265.2);

Tailwind

colors: {
  custom: {
    50: '#7c87ca',
    500: '#3659b2',
    950: '#000000',
  },
}

SCSS

$custom: #3659b2;
$custom-light: #7c87ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3659b2",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 178
  },
  "hsl": {
    "h": 223.065,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.48749,
    "c": 0.14729,
    "h": 265.2
  },
  "luminance": 0.11143
}

Semantic roles & 50–950 ramp

primary

#3659B2

secondary

#C5B17F

accent

#B44BDD

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3659B2

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

Preview Lab → · Contrast checker → · Palette generator →