#3872D9#3872D9

#3872D9 is a mid, vivid blue. Relative luminance 0.179; OKLCH L 56.9% C 0.169 H 260.9°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3872D9
RGB	rgb(56, 114, 217)
HSL	hsl(218, 68%, 54%)
HSV	hsv(218, 74%, 85%)
CMYK	cmyk(74.2%, 47.5%, 0%, 14.9%)
CIE-LAB	lab(49.35, 16.53, -58.29)
CIE-LCH	lch(49.35, 60.59, 285.83°)
OKLab	oklab(56.88% -0.0269 -0.1673)
OKLCH	oklch(56.88% 0.169 260.9)
XYZ	xyz(20.1681, 17.8829, 68.0210)
Luminance	0.1789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3872D9 #D99F38

analogous

#38C2D9 #3872D9 #4E38D9

triadic

#3872D9 #D93872 #72D938

tetradic

#3872D9 #D938C2 #D99F38 #38D94E

square

#3872D9 #D938C2 #D99F38 #38D94E

split-complementary

#3872D9 #D94E38 #C2D938

monochromatic

#183D7E #2256B2 #3872D9 #6B96E3 #9FBBED

Accessibility & contrast

On white

4.59

#3872D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#3872D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3872D9

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3872D9	#FFFFFF	#000000	##FFFFFF
##3872D9	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#397DDD

Deuteranopia (green-blind)

#046ED7

Tritanopia (blue-blind)

#008A9B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3872d9;
/* rgb */ color: rgb(56, 114, 217);
/* oklch */ color: oklch(56.9% 0.169 260.9);

Tailwind

colors: {
  custom: {
    50: '#8499e5',
    500: '#3872d9',
    950: '#000000',
  },
}

SCSS

$custom: #3872d9;
$custom-light: #8499e5;
$custom-dark: #000000;

JSON

{
  "hex": "#3872d9",
  "rgb": {
    "r": 56,
    "g": 114,
    "b": 217
  },
  "hsl": {
    "h": 218.385,
    "s": 67.932,
    "l": 53.529
  },
  "oklch": {
    "l": 0.56878,
    "c": 0.16949,
    "h": 260.9
  },
  "luminance": 0.17885
}

Semantic roles & 50–950 ramp

primary

#3872D9

secondary

#D9C094

accent

#AC3DEB

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #3872D9

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

Preview Lab → · Contrast checker → · Palette generator →