#3870BA#3870BA

#3870BA is a mid, vivid cyan. Relative luminance 0.160; OKLCH L 54.4% C 0.130 H 256.3°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#3870BA
RGB	rgb(56, 112, 186)
HSL	hsl(214, 54%, 47%)
HSV	hsv(214, 70%, 73%)
CMYK	cmyk(69.9%, 39.8%, 0%, 27.1%)
CIE-LAB	lab(46.94, 6.42, -44.40)
CIE-LCH	lch(46.94, 44.87, 278.23°)
OKLab	oklab(54.41% -0.0309 -0.1266)
OKLCH	oklch(54.41% 0.13 256.3)
XYZ	xyz(16.2848, 15.9726, 48.6696)
Luminance	0.1597 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3870BA #BA8238

analogous

#38B1BA #3870BA #4138BA

triadic

#3870BA #BA3870 #70BA38

tetradic

#3870BA #BA38B1 #BA8238 #38BA41

square

#3870BA #BA38B1 #BA8238 #38BA41

split-complementary

#3870BA #BA4138 #B1BA38

monochromatic

#1C375C #2A548B #3870BA #6090CF #8FB1DD

Accessibility & contrast

On white

5.01

#3870BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#3870BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3870BA

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3870BA	#FFFFFF	#000000	##FFFFFF
##3870BA	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)

#4E76BD

Deuteranopia (green-blind)

#3A6AB9

Tritanopia (blue-blind)

#00818C

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3870ba;
/* rgb */ color: rgb(56, 112, 186);
/* oklch */ color: oklch(54.4% 0.130 256.3);

Tailwind

colors: {
  custom: {
    50: '#7e98cf',
    500: '#3870ba',
    950: '#000000',
  },
}

SCSS

$custom: #3870ba;
$custom-light: #7e98cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3870ba",
  "rgb": {
    "r": 56,
    "g": 112,
    "b": 186
  },
  "hsl": {
    "h": 214.154,
    "s": 53.719,
    "l": 47.451
  },
  "oklch": {
    "l": 0.54414,
    "c": 0.13029,
    "h": 256.3
  },
  "luminance": 0.15974
}

Semantic roles & 50–950 ramp

primary

#3870BA

secondary

#C8AB86

accent

#9E4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3870BA

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

Preview Lab → · Contrast checker → · Palette generator →