#3878CD#3878CD

#3878CD is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.4% C 0.147 H 256.5°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3878CD
RGB	rgb(56, 120, 205)
HSL	hsl(214, 60%, 51%)
HSV	hsv(214, 73%, 80%)
CMYK	cmyk(72.7%, 41.5%, 0%, 19.6%)
CIE-LAB	lab(50.31, 8.38, -49.94)
CIE-LCH	lch(50.31, 50.64, 279.53°)
OKLab	oklab(57.38% -0.0342 -0.1427)
OKLCH	oklch(57.38% 0.147 256.5)
XYZ	xyz(19.3628, 18.6793, 60.3308)
Luminance	0.1868 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878CD #CD8D38

analogous

#38C2CD #3878CD #4238CD

triadic

#3878CD #CD3878 #78CD38

tetradic

#3878CD #CD38C2 #CD8D38 #38CD42

square

#3878CD #CD38C2 #CD8D38 #38CD42

split-complementary

#3878CD #CD4238 #C2CD38

monochromatic

#1C3F6F #285BA0 #3878CD #6999D9 #9ABAE6

Accessibility & contrast

On white

4.43

#3878CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#3878CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3878CD

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878CD	#FFFFFF	#000000	##000000
##3878CD	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F7FD0

Deuteranopia (green-blind)

#3671CB

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3878cd;
/* rgb */ color: rgb(56, 120, 205);
/* oklch */ color: oklch(57.4% 0.147 256.5);

Tailwind

colors: {
  custom: {
    50: '#819edd',
    500: '#3878cd',
    950: '#000000',
  },
}

SCSS

$custom: #3878cd;
$custom-light: #819edd;
$custom-dark: #000000;

JSON

{
  "hex": "#3878cd",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 205
  },
  "hsl": {
    "h": 214.228,
    "s": 59.839,
    "l": 51.176
  },
  "oklch": {
    "l": 0.57383,
    "c": 0.14673,
    "h": 256.5
  },
  "luminance": 0.18681
}

Semantic roles & 50–950 ramp

primary

#3878CD

secondary

#D1B58F

accent

#9F45E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3878CD

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

Preview Lab → · Contrast checker → · Palette generator →