#3873BD#3873BD

#3873BD is a mid, vivid cyan. Relative luminance 0.168; OKLCH L 55.3% C 0.131 H 255.4°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3873BD
RGB	rgb(56, 115, 189)
HSL	hsl(213, 54%, 48%)
HSV	hsv(213, 70%, 74%)
CMYK	cmyk(70.4%, 39.2%, 0%, 25.9%)
CIE-LAB	lab(47.97, 5.65, -44.49)
CIE-LCH	lch(47.97, 44.85, 277.24°)
OKLab	oklab(55.28% -0.0331 -0.1268)
OKLCH	oklch(55.28% 0.131 255.4)
XYZ	xyz(16.9436, 16.7745, 50.4791)
Luminance	0.1678 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3873BD #BD8238

analogous

#38B6BD #3873BD #3F38BD

triadic

#3873BD #BD3873 #73BD38

tetradic

#3873BD #BD38B6 #BD8238 #38BD3F

square

#3873BD #BD38B6 #BD8238 #38BD3F

split-complementary

#3873BD #BD3F38 #B6BD38

monochromatic

#1C3A5F #2A568E #3873BD #6293D0 #91B3DE

Accessibility & contrast

On white

4.82

#3873BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3873BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3873BD

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3873BD	#FFFFFF	#000000	##FFFFFF
##3873BD	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5179C0

Deuteranopia (green-blind)

#3D6CBC

Tritanopia (blue-blind)

#00848F

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3873bd;
/* rgb */ color: rgb(56, 115, 189);
/* oklch */ color: oklch(55.3% 0.131 255.4);

Tailwind

colors: {
  custom: {
    50: '#7e9ad1',
    500: '#3873bd',
    950: '#000000',
  },
}

SCSS

$custom: #3873bd;
$custom-light: #7e9ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#3873bd",
  "rgb": {
    "r": 56,
    "g": 115,
    "b": 189
  },
  "hsl": {
    "h": 213.383,
    "s": 54.286,
    "l": 48.039
  },
  "oklch": {
    "l": 0.55275,
    "c": 0.13102,
    "h": 255.4
  },
  "luminance": 0.16776
}

Semantic roles & 50–950 ramp

primary

#3873BD

secondary

#C9AC87

accent

#9C4ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3873BD

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

Preview Lab → · Contrast checker → · Palette generator →