#3654BC#3654BC

#3654BC is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.5% C 0.167 H 267.6°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#3654BC
RGB	rgb(54, 84, 188)
HSL	hsl(227, 55%, 47%)
HSV	hsv(227, 71%, 74%)
CMYK	cmyk(71.3%, 55.3%, 0%, 26.3%)
CIE-LAB	lab(39.16, 24.80, -58.07)
CIE-LCH	lch(39.16, 63.14, 293.13°)
OKLab	oklab(48.48% -0.0071 -0.1672)
OKLCH	oklch(48.48% 0.167 267.6)
XYZ	xyz(13.7656, 10.7543, 48.9175)
Luminance	0.1076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3654BC #BC9E36

analogous

#3697BC #3654BC #5B36BC

triadic

#3654BC #BC3654 #54BC36

tetradic

#3654BC #BC3697 #BC9E36 #36BC5B

square

#3654BC #BC3697 #BC9E36 #36BC5B

split-complementary

#3654BC #BC5B36 #97BC36

monochromatic

#1B2A5D #283F8C #3654BC #5E78D1 #8EA0DF

Accessibility & contrast

On white

6.66

#3654BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3654BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3654BC

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3654BC	#FFFFFF	#000000	##FFFFFF
##3654BC	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#0056BA

Tritanopia (blue-blind)

#006D80

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3654bc;
/* rgb */ color: rgb(54, 84, 188);
/* oklch */ color: oklch(48.5% 0.167 267.6);

Tailwind

colors: {
  custom: {
    50: '#7e83d1',
    500: '#3654bc',
    950: '#000000',
  },
}

SCSS

$custom: #3654bc;
$custom-light: #7e83d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3654bc",
  "rgb": {
    "r": 54,
    "g": 84,
    "b": 188
  },
  "hsl": {
    "h": 226.567,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.48477,
    "c": 0.16738,
    "h": 267.6
  },
  "luminance": 0.10756
}

Semantic roles & 50–950 ramp

primary

#3654BC

secondary

#C9BA85

accent

#BD49DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3654BC

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

Preview Lab → · Contrast checker → · Palette generator →