#3871B4#3871B4

#3871B4 is a mid, vivid cyan. Relative luminance 0.159; OKLCH L 54.3% C 0.121 H 254.0°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#3871B4
RGB	rgb(56, 113, 180)
HSL	hsl(212, 53%, 46%)
HSV	hsv(212, 69%, 71%)
CMYK	cmyk(68.9%, 37.2%, 0%, 29.4%)
CIE-LAB	lab(46.90, 3.63, -40.98)
CIE-LCH	lch(46.90, 41.14, 275.06°)
OKLab	oklab(54.28% -0.0333 -0.1165)
OKLCH	oklch(54.28% 0.121 254)
XYZ	xyz(15.7712, 15.9447, 45.4176)
Luminance	0.1595 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3871B4 #B47B38

analogous

#38AFB4 #3871B4 #3D38B4

triadic

#3871B4 #B43871 #71B438

tetradic

#3871B4 #B438AF #B47B38 #38B43D

square

#3871B4 #B438AF #B47B38 #38B43D

split-complementary

#3871B4 #B43D38 #AFB438

monochromatic

#1B3657 #295485 #3871B4 #5D90CD #8BB0DB

Accessibility & contrast

On white

5.01

#3871B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#3871B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3871B4

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3871B4	#FFFFFF	#000000	##FFFFFF
##3871B4	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5376B7

Deuteranopia (green-blind)

#416AB3

Tritanopia (blue-blind)

#00818A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3871b4;
/* rgb */ color: rgb(56, 113, 180);
/* oklch */ color: oklch(54.3% 0.121 254.0);

Tailwind

colors: {
  custom: {
    50: '#7d99cb',
    500: '#3871b4',
    950: '#000000',
  },
}

SCSS

$custom: #3871b4;
$custom-light: #7d99cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3871b4",
  "rgb": {
    "r": 56,
    "g": 113,
    "b": 180
  },
  "hsl": {
    "h": 212.419,
    "s": 52.542,
    "l": 46.275
  },
  "oklch": {
    "l": 0.54279,
    "c": 0.12121,
    "h": 254
  },
  "luminance": 0.15946
}

Semantic roles & 50–950 ramp

primary

#3871B4

secondary

#C5A782

accent

#9A4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3871B4

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

Preview Lab → · Contrast checker → · Palette generator →