#3667CF#3667CF

#3667CF is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.8% C 0.170 H 263.0°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#3667CF
RGB	rgb(54, 103, 207)
HSL	hsl(221, 61%, 51%)
HSV	hsv(221, 74%, 81%)
CMYK	cmyk(73.9%, 50.2%, 0%, 18.8%)
CIE-LAB	lab(45.62, 19.56, -58.62)
CIE-LCH	lch(45.62, 61.80, 288.45°)
OKLab	oklab(53.79% -0.0207 -0.1685)
OKLCH	oklch(53.79% 0.17 263)
XYZ	xyz(17.6300, 14.9878, 60.9832)
Luminance	0.1499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3667CF #CF9E36

analogous

#36B4CF #3667CF #5136CF

triadic

#3667CF #CF3667 #67CF36

tetradic

#3667CF #CF36B4 #CF9E36 #36CF51

square

#3667CF #CF36B4 #CF9E36 #36CF51

split-complementary

#3667CF #CF5136 #B4CF36

monochromatic

#1B3670 #274EA1 #3667CF #678CDB #99B2E7

Accessibility & contrast

On white

5.25

#3667CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#3667CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3667CF

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3667CF	#FFFFFF	#000000	##FFFFFF
##3667CF	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2773D3

Deuteranopia (green-blind)

#0065CD

Tritanopia (blue-blind)

#008091

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3667cf;
/* rgb */ color: rgb(54, 103, 207);
/* oklch */ color: oklch(53.8% 0.170 263.0);

Tailwind

colors: {
  custom: {
    50: '#8191de',
    500: '#3667cf',
    950: '#000000',
  },
}

SCSS

$custom: #3667cf;
$custom-light: #8191de;
$custom-dark: #000000;

JSON

{
  "hex": "#3667cf",
  "rgb": {
    "r": 54,
    "g": 103,
    "b": 207
  },
  "hsl": {
    "h": 220.784,
    "s": 61.446,
    "l": 51.176
  },
  "oklch": {
    "l": 0.53791,
    "c": 0.16982,
    "h": 263
  },
  "luminance": 0.1499
}

Semantic roles & 50–950 ramp

primary

#3667CF

secondary

#D2BD8F

accent

#B143E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3667CF

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

Preview Lab → · Contrast checker → · Palette generator →