#3655BC#3655BC

#3655BC is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.7% C 0.166 H 267.3°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#3655BC
RGB	rgb(54, 85, 188)
HSL	hsl(226, 55%, 47%)
HSV	hsv(226, 71%, 74%)
CMYK	cmyk(71.3%, 54.8%, 0%, 26.3%)
CIE-LAB	lab(39.43, 24.15, -57.64)
CIE-LCH	lch(39.43, 62.49, 292.74°)
OKLab	oklab(48.68% -0.008 -0.1659)
OKLCH	oklch(48.68% 0.166 267.3)
XYZ	xyz(13.8438, 10.9107, 48.9436)
Luminance	0.1091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3655BC #BC9D36

analogous

#3698BC #3655BC #5A36BC

triadic

#3655BC #BC3655 #55BC36

tetradic

#3655BC #BC3698 #BC9D36 #36BC5A

square

#3655BC #BC3698 #BC9D36 #36BC5A

split-complementary

#3655BC #BC5A36 #98BC36

monochromatic

#1B2A5D #28408C #3655BC #5E79D1 #8EA1DF

Accessibility & contrast

On white

6.60

#3655BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#3655BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3655BC

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3655BC	#FFFFFF	#000000	##FFFFFF
##3655BC	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#0057BA

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3655bc;
/* rgb */ color: rgb(54, 85, 188);
/* oklch */ color: oklch(48.7% 0.166 267.3);

Tailwind

colors: {
  custom: {
    50: '#7e84d1',
    500: '#3655bc',
    950: '#000000',
  },
}

SCSS

$custom: #3655bc;
$custom-light: #7e84d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3655bc",
  "rgb": {
    "r": 54,
    "g": 85,
    "b": 188
  },
  "hsl": {
    "h": 226.119,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.48677,
    "c": 0.16614,
    "h": 267.3
  },
  "luminance": 0.10912
}

Semantic roles & 50–950 ramp

primary

#3655BC

secondary

#C9B985

accent

#BC49DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3655BC

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

Preview Lab → · Contrast checker → · Palette generator →