#3655BB#3655BB

#3655BB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.6% C 0.165 H 267.2°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#3655BB
RGB	rgb(54, 85, 187)
HSL	hsl(226, 55%, 47%)
HSV	hsv(226, 71%, 73%)
CMYK	cmyk(71.1%, 54.5%, 0%, 26.7%)
CIE-LAB	lab(39.36, 23.78, -57.17)
CIE-LCH	lch(39.36, 61.92, 292.59°)
OKLab	oklab(48.6% -0.008 -0.1646)
OKLCH	oklch(48.6% 0.165 267.2)
XYZ	xyz(13.7363, 10.8677, 48.3778)
Luminance	0.1087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3655BB #BB9C36

analogous

#3698BB #3655BB #5936BB

triadic

#3655BB #BB3655 #55BB36

tetradic

#3655BB #BB3698 #BB9C36 #36BB59

square

#3655BB #BB3698 #BB9C36 #36BB59

split-complementary

#3655BB #BB5936 #98BB36

monochromatic

#1B2A5C #283F8C #3655BB #5E78D0 #8DA0DE

Accessibility & contrast

On white

6.62

#3655BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#3655BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3655BB

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3655BB	#FFFFFF	#000000	##FFFFFF
##3655BB	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063BF

Deuteranopia (green-blind)

#0057B9

Tritanopia (blue-blind)

#006E7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3655bb;
/* rgb */ color: rgb(54, 85, 187);
/* oklch */ color: oklch(48.6% 0.165 267.2);

Tailwind

colors: {
  custom: {
    50: '#7e84d0',
    500: '#3655bb',
    950: '#000000',
  },
}

SCSS

$custom: #3655bb;
$custom-light: #7e84d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3655bb",
  "rgb": {
    "r": 54,
    "g": 85,
    "b": 187
  },
  "hsl": {
    "h": 226.015,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.48599,
    "c": 0.16477,
    "h": 267.2
  },
  "luminance": 0.10869
}

Semantic roles & 50–950 ramp

primary

#3655BB

secondary

#C9B984

accent

#BC49DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3655BB

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

Preview Lab → · Contrast checker → · Palette generator →