#3878C4#3878C4

#3878C4 is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.8% C 0.135 H 254.4°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3878C4
RGB	rgb(56, 120, 196)
HSL	hsl(213, 56%, 49%)
HSV	hsv(213, 71%, 77%)
CMYK	cmyk(71.4%, 38.8%, 0%, 23.1%)
CIE-LAB	lab(49.81, 5.11, -45.60)
CIE-LCH	lch(49.81, 45.89, 276.39°)
OKLab	oklab(56.83% -0.0362 -0.1299)
OKLCH	oklch(56.83% 0.135 254.4)
XYZ	xyz(18.3075, 18.2572, 54.7730)
Luminance	0.1826 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878C4 #C48438

analogous

#38BEC4 #3878C4 #3E38C4

triadic

#3878C4 #C43878 #78C438

tetradic

#3878C4 #C438BE #C48438 #38C43E

square

#3878C4 #C438BE #C48438 #38C43E

split-complementary

#3878C4 #C43E38 #BEC438

monochromatic

#1D3E65 #2A5B94 #3878C4 #6698D3 #96B8E1

Accessibility & contrast

On white

4.51

#3878C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#3878C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3878C4

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878C4	#FFFFFF	#000000	##000000
##3878C4	1.00	4.51	4.65	4.65
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#557EC7

Deuteranopia (green-blind)

#3F70C2

Tritanopia (blue-blind)

#008A94

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3878c4;
/* rgb */ color: rgb(56, 120, 196);
/* oklch */ color: oklch(56.8% 0.135 254.4);

Tailwind

colors: {
  custom: {
    50: '#7f9ed6',
    500: '#3878c4',
    950: '#000000',
  },
}

SCSS

$custom: #3878c4;
$custom-light: #7f9ed6;
$custom-dark: #000000;

JSON

{
  "hex": "#3878c4",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 196
  },
  "hsl": {
    "h": 212.571,
    "s": 55.556,
    "l": 49.412
  },
  "oklch": {
    "l": 0.56828,
    "c": 0.1349,
    "h": 254.4
  },
  "luminance": 0.18259
}

Semantic roles & 50–950 ramp

primary

#3878C4

secondary

#CCAF8C

accent

#9A49DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3878C4

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

Preview Lab → · Contrast checker → · Palette generator →