#3878CE#3878CE

#3878CE is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.4% C 0.148 H 256.7°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3878CE
RGB	rgb(56, 120, 206)
HSL	hsl(214, 60%, 51%)
HSV	hsv(214, 73%, 81%)
CMYK	cmyk(72.8%, 41.7%, 0%, 19.2%)
CIE-LAB	lab(50.37, 8.75, -50.42)
CIE-LCH	lch(50.37, 51.17, 279.84°)
OKLab	oklab(57.45% -0.034 -0.1441)
OKLCH	oklch(57.45% 0.148 256.7)
XYZ	xyz(19.4839, 18.7278, 60.9685)
Luminance	0.1873 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878CE #CE8E38

analogous

#38C3CE #3878CE #4338CE

triadic

#3878CE #CE3878 #78CE38

tetradic

#3878CE #CE38C3 #CE8E38 #38CE43

square

#3878CE #CE38C3 #CE8E38 #38CE43

split-complementary

#3878CE #CE4338 #C3CE38

monochromatic

#1C4070 #285BA1 #3878CE #6999DA #9ABBE6

Accessibility & contrast

On white

4.42

#3878CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#3878CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3878CE

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878CE	#FFFFFF	#000000	##000000
##3878CE	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F7FD1

Deuteranopia (green-blind)

#3571CC

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3878ce;
/* rgb */ color: rgb(56, 120, 206);
/* oklch */ color: oklch(57.4% 0.148 256.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3878ce",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 206
  },
  "hsl": {
    "h": 214.4,
    "s": 60.484,
    "l": 51.373
  },
  "oklch": {
    "l": 0.57446,
    "c": 0.14804,
    "h": 256.7
  },
  "luminance": 0.1873
}

Semantic roles & 50–950 ramp

primary

#3878CE

secondary

#D2B690

accent

#A044E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3878CE

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

Preview Lab → · Contrast checker → · Palette generator →