#3659AB#3659AB

#3659AB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.2% C 0.137 H 264.4°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#3659AB
RGB	rgb(54, 89, 171)
HSL	hsl(222, 52%, 44%)
HSV	hsv(222, 68%, 67%)
CMYK	cmyk(68.4%, 48%, 0%, 32.9%)
CIE-LAB	lab(39.36, 15.26, -47.75)
CIE-LCH	lch(39.36, 50.13, 287.73°)
OKLab	oklab(48.25% -0.0133 -0.1368)
OKLCH	oklch(48.25% 0.137 264.4)
XYZ	xyz(12.4418, 10.8681, 39.9622)
Luminance	0.1087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659AB #AB8836

analogous

#3694AB #3659AB #4E36AB

triadic

#3659AB #AB3659 #59AB36

tetradic

#3659AB #AB3694 #AB8836 #36AB4E

square

#3659AB #AB3694 #AB8836 #36AB4E

split-complementary

#3659AB #AB4E36 #94AB36

monochromatic

#19294E #27417C #3659AB #5578C9 #839DD8

Accessibility & contrast

On white

6.62

#3659AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#3659AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659AB

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659AB	#FFFFFF	#000000	##FFFFFF
##3659AB	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E62AE

Deuteranopia (green-blind)

#1358A9

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3659ab;
/* rgb */ color: rgb(54, 89, 171);
/* oklch */ color: oklch(48.2% 0.137 264.4);

Tailwind

colors: {
  custom: {
    50: '#7a87c4',
    500: '#3659ab',
    950: '#000000',
  },
}

SCSS

$custom: #3659ab;
$custom-light: #7a87c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3659ab",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 171
  },
  "hsl": {
    "h": 222.051,
    "s": 52,
    "l": 44.118
  },
  "oklch": {
    "l": 0.48249,
    "c": 0.13744,
    "h": 264.4
  },
  "luminance": 0.10869
}

Semantic roles & 50–950 ramp

primary

#3659AB

secondary

#C2AD7B

accent

#B14CDB

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3659AB

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

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