#3669BF#3669BF

#3669BF is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.1% C 0.146 H 260.2°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#3669BF
RGB	rgb(54, 105, 191)
HSL	hsl(218, 56%, 48%)
HSV	hsv(218, 72%, 75%)
CMYK	cmyk(71.7%, 45%, 0%, 25.1%)
CIE-LAB	lab(45.15, 12.36, -50.16)
CIE-LCH	lch(45.15, 51.66, 283.84°)
OKLab	oklab(53.1% -0.0248 -0.1436)
OKLCH	oklch(53.1% 0.146 260.2)
XYZ	xyz(15.9735, 14.6473, 51.2655)
Luminance	0.1465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3669BF #BF8C36

analogous

#36ADBF #3669BF #4736BF

triadic

#3669BF #BF3669 #69BF36

tetradic

#3669BF #BF36AD #BF8C36 #36BF47

square

#3669BF #BF36AD #BF8C36 #36BF47

split-complementary

#3669BF #BF4736 #ADBF36

monochromatic

#1B3560 #294F8F #3669BF #608BD2 #90AEE0

Accessibility & contrast

On white

5.34

#3669BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#3669BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3669BF

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3669BF	#FFFFFF	#000000	##FFFFFF
##3669BF	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E72C2

Deuteranopia (green-blind)

#2265BD

Tritanopia (blue-blind)

#007D8B

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3669bf;
/* rgb */ color: rgb(54, 105, 191);
/* oklch */ color: oklch(53.1% 0.146 260.2);

Tailwind

colors: {
  custom: {
    50: '#7e93d3',
    500: '#3669bf',
    950: '#000000',
  },
}

SCSS

$custom: #3669bf;
$custom-light: #7e93d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3669bf",
  "rgb": {
    "r": 54,
    "g": 105,
    "b": 191
  },
  "hsl": {
    "h": 217.664,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.53101,
    "c": 0.14576,
    "h": 260.2
  },
  "luminance": 0.14649
}

Semantic roles & 50–950 ramp

primary

#3669BF

secondary

#CAB187

accent

#A749DF

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3669BF

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

Preview Lab → · Contrast checker → · Palette generator →