#3654BB#3654BB

#3654BB is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.4% C 0.166 H 267.5°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#3654BB
RGB	rgb(54, 84, 187)
HSL	hsl(226, 55%, 47%)
HSV	hsv(226, 71%, 73%)
CMYK	cmyk(71.1%, 55.1%, 0%, 26.7%)
CIE-LAB	lab(39.09, 24.43, -57.60)
CIE-LCH	lch(39.09, 62.57, 292.99°)
OKLab	oklab(48.4% -0.0072 -0.1659)
OKLCH	oklch(48.4% 0.166 267.5)
XYZ	xyz(13.6582, 10.7114, 48.3518)
Luminance	0.1071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3654BB #BB9D36

analogous

#3697BB #3654BB #5A36BB

triadic

#3654BB #BB3654 #54BB36

tetradic

#3654BB #BB3697 #BB9D36 #36BB5A

square

#3654BB #BB3697 #BB9D36 #36BB5A

split-complementary

#3654BB #BB5A36 #97BB36

monochromatic

#1B295C #283F8C #3654BB #5E78D0 #8D9FDE

Accessibility & contrast

On white

6.68

#3654BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#3654BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3654BB

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3654BB	#FFFFFF	#000000	##FFFFFF
##3654BB	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0056B9

Tritanopia (blue-blind)

#006D7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3654bb;
/* rgb */ color: rgb(54, 84, 187);
/* oklch */ color: oklch(48.4% 0.166 267.5);

Tailwind

colors: {
  custom: {
    50: '#7e83d0',
    500: '#3654bb',
    950: '#000000',
  },
}

SCSS

$custom: #3654bb;
$custom-light: #7e83d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3654bb",
  "rgb": {
    "r": 54,
    "g": 84,
    "b": 187
  },
  "hsl": {
    "h": 226.466,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.48398,
    "c": 0.16602,
    "h": 267.5
  },
  "luminance": 0.10713
}

Semantic roles & 50–950 ramp

primary

#3654BB

secondary

#C9B984

accent

#BD49DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3654BB

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

Preview Lab → · Contrast checker → · Palette generator →