#3767D1#3767D1

#3767D1 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.0% C 0.172 H 263.4°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#3767D1
RGB	rgb(55, 103, 209)
HSL	hsl(221, 63%, 52%)
HSV	hsv(221, 74%, 82%)
CMYK	cmyk(73.7%, 50.7%, 0%, 18%)
CIE-LAB	lab(45.79, 20.42, -59.49)
CIE-LCH	lch(45.79, 62.89, 288.95°)
OKLab	oklab(53.98% -0.0197 -0.1711)
OKLCH	oklch(53.98% 0.172 263.4)
XYZ	xyz(17.9303, 15.1142, 62.2816)
Luminance	0.1512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3767D1 #D1A137

analogous

#37B4D1 #3767D1 #5437D1

triadic

#3767D1 #D13767 #67D137

tetradic

#3767D1 #D137B4 #D1A137 #37D154

square

#3767D1 #D137B4 #D1A137 #37D154

split-complementary

#3767D1 #D15437 #B4D137

monochromatic

#1A3673 #264DA5 #3767D1 #698DDC #9BB3E8

Accessibility & contrast

On white

5.22

#3767D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#3767D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3767D1

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3767D1	#FFFFFF	#000000	##FFFFFF
##3767D1	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2474D5

Deuteranopia (green-blind)

#0066CF

Tritanopia (blue-blind)

#008092

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3767d1;
/* rgb */ color: rgb(55, 103, 209);
/* oklch */ color: oklch(54.0% 0.172 263.4);

Tailwind

colors: {
  custom: {
    50: '#8291e0',
    500: '#3767d1',
    950: '#000000',
  },
}

SCSS

$custom: #3767d1;
$custom-light: #8291e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3767d1",
  "rgb": {
    "r": 55,
    "g": 103,
    "b": 209
  },
  "hsl": {
    "h": 221.299,
    "s": 62.602,
    "l": 51.765
  },
  "oklch": {
    "l": 0.53976,
    "c": 0.17221,
    "h": 263.4
  },
  "luminance": 0.15116
}

Semantic roles & 50–950 ramp

primary

#3767D1

secondary

#D4BF90

accent

#B342E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3767D1

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

Preview Lab → · Contrast checker → · Palette generator →