#3871C3#3871C3

#3871C3 is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.2% C 0.141 H 257.8°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#3871C3
RGB	rgb(56, 113, 195)
HSL	hsl(215, 55%, 49%)
HSV	hsv(215, 71%, 76%)
CMYK	cmyk(71.3%, 42.1%, 0%, 23.5%)
CIE-LAB	lab(47.74, 9.08, -48.32)
CIE-LCH	lch(47.74, 49.17, 280.64°)
OKLab	oklab(55.2% -0.0299 -0.138)
OKLCH	oklch(55.2% 0.141 257.8)
XYZ	xyz(17.3828, 16.5893, 53.9051)
Luminance	0.1659 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3871C3 #C38A38

analogous

#38B6C3 #3871C3 #4538C3

triadic

#3871C3 #C33871 #71C338

tetradic

#3871C3 #C338B6 #C38A38 #38C345

square

#3871C3 #C338B6 #C38A38 #38C345

split-complementary

#3871C3 #C34538 #B6C338

monochromatic

#1D3A64 #2A5593 #3871C3 #6592D3 #95B4E1

Accessibility & contrast

On white

4.86

#3871C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#3871C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3871C3

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3871C3	#FFFFFF	#000000	##FFFFFF
##3871C3	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A78C6

Deuteranopia (green-blind)

#326BC1

Tritanopia (blue-blind)

#008490

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3871c3;
/* rgb */ color: rgb(56, 113, 195);
/* oklch */ color: oklch(55.2% 0.141 257.8);

Tailwind

colors: {
  custom: {
    50: '#7f99d5',
    500: '#3871c3',
    950: '#000000',
  },
}

SCSS

$custom: #3871c3;
$custom-light: #7f99d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3871c3",
  "rgb": {
    "r": 56,
    "g": 113,
    "b": 195
  },
  "hsl": {
    "h": 215.396,
    "s": 55.378,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55202,
    "c": 0.14125,
    "h": 257.8
  },
  "luminance": 0.16591
}

Semantic roles & 50–950 ramp

primary

#3871C3

secondary

#CCB18B

accent

#A149DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3871C3

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

Preview Lab → · Contrast checker → · Palette generator →