#3659BA#3659BA

#3659BA is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.3% C 0.158 H 265.9°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#3659BA
RGB	rgb(54, 89, 186)
HSL	hsl(224, 55%, 47%)
HSV	hsv(224, 71%, 73%)
CMYK	cmyk(71%, 52.2%, 0%, 27.1%)
CIE-LAB	lab(40.37, 20.81, -54.95)
CIE-LCH	lch(40.37, 58.76, 290.74°)
OKLab	oklab(49.34% -0.0115 -0.158)
OKLCH	oklch(49.34% 0.158 265.9)
XYZ	xyz(13.9535, 11.4728, 47.9239)
Luminance	0.1147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659BA #BA9736

analogous

#369BBA #3659BA #5536BA

triadic

#3659BA #BA3659 #59BA36

tetradic

#3659BA #BA369B #BA9736 #36BA55

square

#3659BA #BA369B #BA9736 #36BA55

split-complementary

#3659BA #BA5536 #9BBA36

monochromatic

#1A2C5B #28428B #3659BA #5D7CD0 #8DA2DE

Accessibility & contrast

On white

6.37

#3659BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#3659BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659BA

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659BA	#FFFFFF	#000000	##FFFFFF
##3659BA	1.00	6.37	3.29	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A65BD

Deuteranopia (green-blind)

#0059B8

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3659ba;
/* rgb */ color: rgb(54, 89, 186);
/* oklch */ color: oklch(49.3% 0.158 265.9);

Tailwind

colors: {
  custom: {
    50: '#7e87cf',
    500: '#3659ba',
    950: '#000000',
  },
}

SCSS

$custom: #3659ba;
$custom-light: #7e87cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3659ba",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 186
  },
  "hsl": {
    "h": 224.091,
    "s": 55,
    "l": 47.059
  },
  "oklch": {
    "l": 0.49339,
    "c": 0.1584,
    "h": 265.9
  },
  "luminance": 0.11474
}

Semantic roles & 50–950 ramp

primary

#3659BA

secondary

#C8B684

accent

#B749DE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3659BA

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

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