#3667D3#3667D3

#3667D3 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.1% C 0.175 H 263.4°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#3667D3
RGB	rgb(54, 103, 211)
HSL	hsl(221, 64%, 52%)
HSV	hsv(221, 74%, 83%)
CMYK	cmyk(74.4%, 51.2%, 0%, 17.3%)
CIE-LAB	lab(45.89, 21.04, -60.47)
CIE-LCH	lch(45.89, 64.03, 289.18°)
OKLab	oklab(54.08% -0.0203 -0.174)
OKLCH	oklch(54.08% 0.175 263.4)
XYZ	xyz(18.1253, 15.1859, 63.5913)
Luminance	0.1519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3667D3 #D3A236

analogous

#36B6D3 #3667D3 #5436D3

triadic

#3667D3 #D33667 #67D336

tetradic

#3667D3 #D336B6 #D3A236 #36D354

square

#3667D3 #D336B6 #D3A236 #36D354

split-complementary

#3667D3 #D35436 #B6D336

monochromatic

#1A3675 #254DA7 #3667D3 #688DDE #9AB3E9

Accessibility & contrast

On white

5.20

#3667D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#3667D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3667D3

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3667D3	#FFFFFF	#000000	##FFFFFF
##3667D3	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2174D7

Deuteranopia (green-blind)

#0066D1

Tritanopia (blue-blind)

#008193

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3667d3;
/* rgb */ color: rgb(54, 103, 211);
/* oklch */ color: oklch(54.1% 0.175 263.4);

Tailwind

colors: {
  custom: {
    50: '#8291e1',
    500: '#3667d3',
    950: '#000000',
  },
}

SCSS

$custom: #3667d3;
$custom-light: #8291e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3667d3",
  "rgb": {
    "r": 54,
    "g": 103,
    "b": 211
  },
  "hsl": {
    "h": 221.274,
    "s": 64.082,
    "l": 51.961
  },
  "oklch": {
    "l": 0.54083,
    "c": 0.17518,
    "h": 263.4
  },
  "luminance": 0.15188
}

Semantic roles & 50–950 ramp

primary

#3667D3

secondary

#D5BF90

accent

#B341E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3667D3

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

Preview Lab → · Contrast checker → · Palette generator →