#3669BD#3669BD

#3669BD is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.0% C 0.143 H 259.9°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3669BD
RGB	rgb(54, 105, 189)
HSL	hsl(217, 56%, 48%)
HSV	hsv(217, 71%, 74%)
CMYK	cmyk(71.4%, 44.4%, 0%, 25.9%)
CIE-LAB	lab(45.03, 11.62, -49.20)
CIE-LCH	lch(45.03, 50.55, 283.29°)
OKLab	oklab(52.97% -0.0252 -0.1408)
OKLCH	oklch(52.97% 0.143 259.9)
XYZ	xyz(15.7549, 14.5599, 50.1143)
Luminance	0.1456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3669BD #BD8A36

analogous

#36ADBD #3669BD #4636BD

triadic

#3669BD #BD3669 #69BD36

tetradic

#3669BD #BD36AD #BD8A36 #36BD46

square

#3669BD #BD36AD #BD8A36 #36BD46

split-complementary

#3669BD #BD4636 #ADBD36

monochromatic

#1B345E #284F8D #3669BD #5F8AD1 #8FADDF

Accessibility & contrast

On white

5.37

#3669BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#3669BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3669BD

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3669BD	#FFFFFF	#000000	##FFFFFF
##3669BD	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F71C0

Deuteranopia (green-blind)

#2665BB

Tritanopia (blue-blind)

#007D8A

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3669bd;
/* rgb */ color: rgb(54, 105, 189);
/* oklch */ color: oklch(53.0% 0.143 259.9);

Tailwind

colors: {
  custom: {
    50: '#7e93d1',
    500: '#3669bd',
    950: '#000000',
  },
}

SCSS

$custom: #3669bd;
$custom-light: #7e93d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3669bd",
  "rgb": {
    "r": 54,
    "g": 105,
    "b": 189
  },
  "hsl": {
    "h": 217.333,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.52968,
    "c": 0.14304,
    "h": 259.9
  },
  "luminance": 0.14562
}

Semantic roles & 50–950 ramp

primary

#3669BD

secondary

#C9B085

accent

#A649DF

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3669BD

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

Preview Lab → · Contrast checker → · Palette generator →