#3659D3#3659D3

#3659D3 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.3% C 0.192 H 267.0°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#3659D3
RGB	rgb(54, 89, 211)
HSL	hsl(227, 64%, 52%)
HSV	hsv(227, 74%, 83%)
CMYK	cmyk(74.4%, 57.8%, 0%, 17.3%)
CIE-LAB	lab(42.20, 30.00, -66.46)
CIE-LCH	lch(42.20, 72.92, 294.30°)
OKLab	oklab(51.3% -0.0099 -0.1918)
OKLCH	oklch(51.3% 0.192 267)
XYZ	xyz(16.8475, 12.6303, 63.1654)
Luminance	0.1263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659D3 #D3B036

analogous

#36A8D3 #3659D3 #6136D3

triadic

#3659D3 #D33659 #59D336

tetradic

#3659D3 #D336A8 #D3B036 #36D361

square

#3659D3 #D336A8 #D3B036 #36D361

split-complementary

#3659D3 #D36136 #A8D336

monochromatic

#1A2E75 #2542A7 #3659D3 #6882DE #9AACE9

Accessibility & contrast

On white

5.96

#3659D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#3659D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659D3

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659D3	#FFFFFF	#000000	##FFFFFF
##3659D3	1.00	5.96	3.53	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD7

Deuteranopia (green-blind)

#005DD1

Tritanopia (blue-blind)

#00788D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3659d3;
/* rgb */ color: rgb(54, 89, 211);
/* oklch */ color: oklch(51.3% 0.192 267.0);

Tailwind

colors: {
  custom: {
    50: '#8387e1',
    500: '#3659d3',
    950: '#000000',
  },
}

SCSS

$custom: #3659d3;
$custom-light: #8387e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3659d3",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 211
  },
  "hsl": {
    "h": 226.624,
    "s": 64.082,
    "l": 51.961
  },
  "oklch": {
    "l": 0.513,
    "c": 0.19207,
    "h": 267
  },
  "luminance": 0.12632
}

Semantic roles & 50–950 ramp

primary

#3659D3

secondary

#D5C590

accent

#C241E7

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3659D3

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

Preview Lab → · Contrast checker → · Palette generator →