#3654C9#3654C9

#3654C9 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.5% C 0.185 H 268.0°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#3654C9
RGB	rgb(54, 84, 201)
HSL	hsl(228, 58%, 50%)
HSV	hsv(228, 73%, 79%)
CMYK	cmyk(73.1%, 58.2%, 0%, 21.2%)
CIE-LAB	lab(40.15, 29.56, -64.04)
CIE-LCH	lch(40.15, 70.53, 294.78°)
OKLab	oklab(49.52% -0.0066 -0.1848)
OKLCH	oklch(49.52% 0.185 268)
XYZ	xyz(15.2306, 11.3403, 56.6332)
Luminance	0.1134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3654C9 #C9AB36

analogous

#369EC9 #3654C9 #6136C9

triadic

#3654C9 #C93654 #54C936

tetradic

#3654C9 #C9369E #C9AB36 #36C961

square

#3654C9 #C9369E #C9AB36 #36C961

split-complementary

#3654C9 #C96136 #9EC936

monochromatic

#1C2C69 #294099 #3654C9 #667DD6 #96A6E3

Accessibility & contrast

On white

6.43

#3654C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#3654C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3654C9

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3654C9	#FFFFFF	#000000	##FFFFFF
##3654C9	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CD

Deuteranopia (green-blind)

#0058C7

Tritanopia (blue-blind)

#007186

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3654c9;
/* rgb */ color: rgb(54, 84, 201);
/* oklch */ color: oklch(49.5% 0.185 268.0);

Tailwind

colors: {
  custom: {
    50: '#8183da',
    500: '#3654c9',
    950: '#000000',
  },
}

SCSS

$custom: #3654c9;
$custom-light: #8183da;
$custom-dark: #000000;

JSON

{
  "hex": "#3654c9",
  "rgb": {
    "r": 54,
    "g": 84,
    "b": 201
  },
  "hsl": {
    "h": 227.755,
    "s": 57.647,
    "l": 50
  },
  "oklch": {
    "l": 0.49524,
    "c": 0.18489,
    "h": 268
  },
  "luminance": 0.11342
}

Semantic roles & 50–950 ramp

primary

#3654C9

secondary

#CEC18C

accent

#C147E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3654C9

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

Preview Lab → · Contrast checker → · Palette generator →