#3659C9#3659C9

#3659C9 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.5% C 0.179 H 266.7°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#3659C9
RGB	rgb(54, 89, 201)
HSL	hsl(226, 58%, 50%)
HSV	hsv(226, 73%, 79%)
CMYK	cmyk(73.1%, 55.7%, 0%, 21.2%)
CIE-LAB	lab(41.44, 26.34, -61.93)
CIE-LCH	lch(41.44, 67.30, 293.04°)
OKLab	oklab(50.5% -0.0103 -0.1785)
OKLCH	oklch(50.5% 0.179 266.7)
XYZ	xyz(15.6326, 12.1444, 56.7672)
Luminance	0.1215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659C9 #C9A636

analogous

#36A3C9 #3659C9 #5C36C9

triadic

#3659C9 #C93659 #59C936

tetradic

#3659C9 #C936A3 #C9A636 #36C95C

square

#3659C9 #C936A3 #C9A636 #36C95C

split-complementary

#3659C9 #C95C36 #A3C936

monochromatic

#1C2E69 #294499 #3659C9 #6681D6 #96A9E3

Accessibility & contrast

On white

6.12

#3659C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#3659C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659C9

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659C9	#FFFFFF	#000000	##FFFFFF
##3659C9	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CD

Deuteranopia (green-blind)

#005BC7

Tritanopia (blue-blind)

#007588

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3659c9;
/* rgb */ color: rgb(54, 89, 201);
/* oklch */ color: oklch(50.5% 0.179 266.7);

Tailwind

colors: {
  custom: {
    50: '#8187da',
    500: '#3659c9',
    950: '#000000',
  },
}

SCSS

$custom: #3659c9;
$custom-light: #8187da;
$custom-dark: #000000;

JSON

{
  "hex": "#3659c9",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 201
  },
  "hsl": {
    "h": 225.714,
    "s": 57.647,
    "l": 50
  },
  "oklch": {
    "l": 0.50496,
    "c": 0.1788,
    "h": 266.7
  },
  "luminance": 0.12146
}

Semantic roles & 50–950 ramp

primary

#3659C9

secondary

#CEBF8C

accent

#BC47E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3659C9

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

Preview Lab → · Contrast checker → · Palette generator →