#3655C9#3655C9

#3655C9 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.7% C 0.184 H 267.7°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#3655C9
RGB	rgb(54, 85, 201)
HSL	hsl(227, 58%, 50%)
HSV	hsv(227, 73%, 79%)
CMYK	cmyk(73.1%, 57.7%, 0%, 21.2%)
CIE-LAB	lab(40.40, 28.92, -63.62)
CIE-LCH	lch(40.40, 69.88, 294.45°)
OKLab	oklab(49.72% -0.0073 -0.1835)
OKLCH	oklch(49.72% 0.184 267.7)
XYZ	xyz(15.3088, 11.4967, 56.6593)
Luminance	0.1150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3655C9 #C9AA36

analogous

#369EC9 #3655C9 #6136C9

triadic

#3655C9 #C93655 #55C936

tetradic

#3655C9 #C9369E #C9AA36 #36C961

square

#3655C9 #C9369E #C9AA36 #36C961

split-complementary

#3655C9 #C96136 #9EC936

monochromatic

#1C2C69 #294199 #3655C9 #667ED6 #96A7E3

Accessibility & contrast

On white

6.36

#3655C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#3655C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3655C9

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3655C9	#FFFFFF	#000000	##FFFFFF
##3655C9	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CD

Deuteranopia (green-blind)

#0059C7

Tritanopia (blue-blind)

#007287

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3655c9;
/* rgb */ color: rgb(54, 85, 201);
/* oklch */ color: oklch(49.7% 0.184 267.7);

Tailwind

colors: {
  custom: {
    50: '#8184da',
    500: '#3655c9',
    950: '#000000',
  },
}

SCSS

$custom: #3655c9;
$custom-light: #8184da;
$custom-dark: #000000;

JSON

{
  "hex": "#3655c9",
  "rgb": {
    "r": 54,
    "g": 85,
    "b": 201
  },
  "hsl": {
    "h": 227.347,
    "s": 57.647,
    "l": 50
  },
  "oklch": {
    "l": 0.49716,
    "c": 0.18368,
    "h": 267.7
  },
  "luminance": 0.11498
}

Semantic roles & 50–950 ramp

primary

#3655C9

secondary

#CEC08C

accent

#C047E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3655C9

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

Preview Lab → · Contrast checker → · Palette generator →