#3871B5#3871B5

#3871B5 is a mid, vivid cyan. Relative luminance 0.160; OKLCH L 54.3% C 0.123 H 254.3°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#3871B5
RGB	rgb(56, 113, 181)
HSL	hsl(213, 53%, 46%)
HSV	hsv(213, 69%, 71%)
CMYK	cmyk(69.1%, 37.6%, 0%, 29%)
CIE-LAB	lab(46.96, 3.99, -41.48)
CIE-LCH	lch(46.96, 41.67, 275.49°)
OKLab	oklab(54.34% -0.0331 -0.118)
OKLCH	oklch(54.34% 0.123 254.3)
XYZ	xyz(15.8734, 15.9855, 45.9561)
Luminance	0.1599 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3871B5 #B57C38

analogous

#38B0B5 #3871B5 #3E38B5

triadic

#3871B5 #B53871 #71B538

tetradic

#3871B5 #B538B0 #B57C38 #38B53E

square

#3871B5 #B538B0 #B57C38 #38B53E

split-complementary

#3871B5 #B53E38 #B0B538

monochromatic

#1B3758 #2A5486 #3871B5 #5D90CD #8CB0DB

Accessibility & contrast

On white

5.00

#3871B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#3871B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3871B5

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3871B5	#FFFFFF	#000000	##FFFFFF
##3871B5	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5276B8

Deuteranopia (green-blind)

#406AB4

Tritanopia (blue-blind)

#00818A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3871b5;
/* rgb */ color: rgb(56, 113, 181);
/* oklch */ color: oklch(54.3% 0.123 254.3);

Tailwind

colors: {
  custom: {
    50: '#7d99cb',
    500: '#3871b5',
    950: '#000000',
  },
}

SCSS

$custom: #3871b5;
$custom-light: #7d99cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3871b5",
  "rgb": {
    "r": 56,
    "g": 113,
    "b": 181
  },
  "hsl": {
    "h": 212.64,
    "s": 52.743,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54338,
    "c": 0.12254,
    "h": 254.3
  },
  "luminance": 0.15987
}

Semantic roles & 50–950 ramp

primary

#3871B5

secondary

#C6A783

accent

#9A4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3871B5

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

Preview Lab → · Contrast checker → · Palette generator →