#3873BF#3873BF

#3873BF is a mid, vivid cyan. Relative luminance 0.169; OKLCH L 55.4% C 0.134 H 255.9°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#3873BF
RGB	rgb(56, 115, 191)
HSL	hsl(214, 55%, 48%)
HSV	hsv(214, 71%, 75%)
CMYK	cmyk(70.7%, 39.8%, 0%, 25.1%)
CIE-LAB	lab(48.09, 6.37, -45.47)
CIE-LCH	lch(48.09, 45.91, 277.98°)
OKLab	oklab(55.4% -0.0326 -0.1296)
OKLCH	oklch(55.4% 0.134 255.9)
XYZ	xyz(17.1621, 16.8620, 51.6303)
Luminance	0.1686 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3873BF #BF8438

analogous

#38B6BF #3873BF #4038BF

triadic

#3873BF #BF3873 #73BF38

tetradic

#3873BF #BF38B6 #BF8438 #38BF40

square

#3873BF #BF38B6 #BF8438 #38BF40

split-complementary

#3873BF #BF4038 #B6BF38

monochromatic

#1C3A60 #2A5790 #3873BF #6393D1 #92B4DF

Accessibility & contrast

On white

4.80

#3873BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#3873BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3873BF

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3873BF	#FFFFFF	#000000	##FFFFFF
##3873BF	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5079C2

Deuteranopia (green-blind)

#3B6CBD

Tritanopia (blue-blind)

#008590

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3873bf;
/* rgb */ color: rgb(56, 115, 191);
/* oklch */ color: oklch(55.4% 0.134 255.9);

Tailwind

colors: {
  custom: {
    50: '#7f9ad3',
    500: '#3873bf',
    950: '#000000',
  },
}

SCSS

$custom: #3873bf;
$custom-light: #7f9ad3;
$custom-dark: #000000;

JSON

{
  "hex": "#3873bf",
  "rgb": {
    "r": 56,
    "g": 115,
    "b": 191
  },
  "hsl": {
    "h": 213.778,
    "s": 54.656,
    "l": 48.431
  },
  "oklch": {
    "l": 0.55398,
    "c": 0.13369,
    "h": 255.9
  },
  "luminance": 0.16864
}

Semantic roles & 50–950 ramp

primary

#3873BF

secondary

#CAAE89

accent

#9D4ADE

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3873BF

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

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