#3873CD#3873CD

#3873CD is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.3% C 0.152 H 258.7°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3873CD
RGB	rgb(56, 115, 205)
HSL	hsl(216, 60%, 51%)
HSV	hsv(216, 73%, 80%)
CMYK	cmyk(72.7%, 43.9%, 0%, 19.6%)
CIE-LAB	lab(48.89, 11.49, -52.21)
CIE-LCH	lch(48.89, 53.46, 282.41°)
OKLab	oklab(56.29% -0.0297 -0.1494)
OKLCH	oklch(56.29% 0.152 258.7)
XYZ	xyz(18.7771, 17.5079, 60.1355)
Luminance	0.1751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3873CD #CD9238

analogous

#38BDCD #3873CD #4738CD

triadic

#3873CD #CD3873 #73CD38

tetradic

#3873CD #CD38BD #CD9238 #38CD47

square

#3873CD #CD38BD #CD9238 #38CD47

split-complementary

#3873CD #CD4738 #BDCD38

monochromatic

#1C3D6F #2857A0 #3873CD #6995D9 #9AB8E6

Accessibility & contrast

On white

4.66

#3873CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#3873CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3873CD

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3873CD	#FFFFFF	#000000	##FFFFFF
##3873CD	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467CD0

Deuteranopia (green-blind)

#2A6ECB

Tritanopia (blue-blind)

#008896

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3873cd;
/* rgb */ color: rgb(56, 115, 205);
/* oklch */ color: oklch(56.3% 0.152 258.7);

Tailwind

colors: {
  custom: {
    50: '#819add',
    500: '#3873cd',
    950: '#000000',
  },
}

SCSS

$custom: #3873cd;
$custom-light: #819add;
$custom-dark: #000000;

JSON

{
  "hex": "#3873cd",
  "rgb": {
    "r": 56,
    "g": 115,
    "b": 205
  },
  "hsl": {
    "h": 216.242,
    "s": 59.839,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56286,
    "c": 0.15236,
    "h": 258.7
  },
  "luminance": 0.1751
}

Semantic roles & 50–950 ramp

primary

#3873CD

secondary

#D1B78F

accent

#A445E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3873CD

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

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