#3871B7#3871B7

#3871B7 is a mid, vivid cyan. Relative luminance 0.161; OKLCH L 54.5% C 0.125 H 254.9°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#3871B7
RGB	rgb(56, 113, 183)
HSL	hsl(213, 53%, 47%)
HSV	hsv(213, 69%, 72%)
CMYK	cmyk(69.4%, 38.3%, 0%, 28.2%)
CIE-LAB	lab(47.06, 4.71, -42.47)
CIE-LCH	lch(47.06, 42.73, 276.33°)
OKLab	oklab(54.46% -0.0326 -0.1209)
OKLCH	oklch(54.46% 0.125 254.9)
XYZ	xyz(16.0801, 16.0682, 47.0446)
Luminance	0.1607 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3871B7 #B77E38

analogous

#38B1B7 #3871B7 #3F38B7

triadic

#3871B7 #B73871 #71B738

tetradic

#3871B7 #B738B1 #B77E38 #38B73F

square

#3871B7 #B738B1 #B77E38 #38B73F

split-complementary

#3871B7 #B73F38 #B1B738

monochromatic

#1B3759 #2A5488 #3871B7 #5E90CE #8DB1DC

Accessibility & contrast

On white

4.98

#3871B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#3871B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3871B7

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3871B7	#FFFFFF	#000000	##FFFFFF
##3871B7	1.00	4.98	4.21	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5176BA

Deuteranopia (green-blind)

#3E6AB6

Tritanopia (blue-blind)

#00818B

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3871b7;
/* rgb */ color: rgb(56, 113, 183);
/* oklch */ color: oklch(54.5% 0.125 254.9);

Tailwind

colors: {
  custom: {
    50: '#7d99cd',
    500: '#3871b7',
    950: '#000000',
  },
}

SCSS

$custom: #3871b7;
$custom-light: #7d99cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3871b7",
  "rgb": {
    "r": 56,
    "g": 113,
    "b": 183
  },
  "hsl": {
    "h": 213.071,
    "s": 53.138,
    "l": 46.863
  },
  "oklch": {
    "l": 0.54458,
    "c": 0.12519,
    "h": 254.9
  },
  "luminance": 0.1607
}

Semantic roles & 50–950 ramp

primary

#3871B7

secondary

#C7A984

accent

#9B4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3871B7

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

Preview Lab → · Contrast checker → · Palette generator →