#3873BE#3873BE

#3873BE is a mid, vivid cyan. Relative luminance 0.168; OKLCH L 55.3% C 0.132 H 255.6°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3873BE
RGB	rgb(56, 115, 190)
HSL	hsl(214, 54%, 48%)
HSV	hsv(214, 71%, 75%)
CMYK	cmyk(70.5%, 39.5%, 0%, 25.5%)
CIE-LAB	lab(48.03, 6.01, -44.98)
CIE-LCH	lch(48.03, 45.38, 277.61°)
OKLab	oklab(55.34% -0.0329 -0.1282)
OKLCH	oklch(55.34% 0.132 255.6)
XYZ	xyz(17.0525, 16.8181, 51.0527)
Luminance	0.1682 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3873BE #BE8338

analogous

#38B6BE #3873BE #4038BE

triadic

#3873BE #BE3873 #73BE38

tetradic

#3873BE #BE38B6 #BE8338 #38BE40

square

#3873BE #BE38B6 #BE8338 #38BE40

split-complementary

#3873BE #BE4038 #B6BE38

monochromatic

#1C3A5F #2A568F #3873BE #6293D1 #92B4DF

Accessibility & contrast

On white

4.81

#3873BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3873BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3873BE

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3873BE	#FFFFFF	#000000	##FFFFFF
##3873BE	1.00	4.81	4.36	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5079C1

Deuteranopia (green-blind)

#3C6CBC

Tritanopia (blue-blind)

#00848F

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3873be;
/* rgb */ color: rgb(56, 115, 190);
/* oklch */ color: oklch(55.3% 0.132 255.6);

Tailwind

colors: {
  custom: {
    50: '#7e9ad2',
    500: '#3873be',
    950: '#000000',
  },
}

SCSS

$custom: #3873be;
$custom-light: #7e9ad2;
$custom-dark: #000000;

JSON

{
  "hex": "#3873be",
  "rgb": {
    "r": 56,
    "g": 115,
    "b": 190
  },
  "hsl": {
    "h": 213.582,
    "s": 54.472,
    "l": 48.235
  },
  "oklch": {
    "l": 0.55336,
    "c": 0.13235,
    "h": 255.6
  },
  "luminance": 0.1682
}

Semantic roles & 50–950 ramp

primary

#3873BE

secondary

#CAAD88

accent

#9D4ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3873BE

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

Preview Lab → · Contrast checker → · Palette generator →