#3878C7#3878C7

#3878C7 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 57.0% C 0.139 H 255.2°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3878C7
RGB	rgb(56, 120, 199)
HSL	hsl(213, 56%, 50%)
HSV	hsv(213, 72%, 78%)
CMYK	cmyk(71.9%, 39.7%, 0%, 22%)
CIE-LAB	lab(49.97, 6.20, -47.06)
CIE-LCH	lch(49.97, 47.46, 277.50°)
OKLab	oklab(57.01% -0.0355 -0.1342)
OKLCH	oklch(57.01% 0.139 255.2)
XYZ	xyz(18.6524, 18.3952, 56.5894)
Luminance	0.1840 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878C7 #C78738

analogous

#38BFC7 #3878C7 #4038C7

triadic

#3878C7 #C73878 #78C738

tetradic

#3878C7 #C738BF #C78738 #38C740

square

#3878C7 #C738BF #C78738 #38C740

split-complementary

#3878C7 #C74038 #BFC738

monochromatic

#1D3E67 #2B5B97 #3878C7 #6898D4 #98B9E2

Accessibility & contrast

On white

4.49

#3878C7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#3878C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3878C7

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878C7	#FFFFFF	#000000	##000000
##3878C7	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#537ECA

Deuteranopia (green-blind)

#3D71C5

Tritanopia (blue-blind)

#008A96

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3878c7;
/* rgb */ color: rgb(56, 120, 199);
/* oklch */ color: oklch(57.0% 0.139 255.2);

Tailwind

colors: {
  custom: {
    50: '#809ed8',
    500: '#3878c7',
    950: '#000000',
  },
}

SCSS

$custom: #3878c7;
$custom-light: #809ed8;
$custom-dark: #000000;

JSON

{
  "hex": "#3878c7",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 199
  },
  "hsl": {
    "h": 213.147,
    "s": 56.078,
    "l": 50
  },
  "oklch": {
    "l": 0.5701,
    "c": 0.13884,
    "h": 255.2
  },
  "luminance": 0.18397
}

Semantic roles & 50–950 ramp

primary

#3878C7

secondary

#CDB18D

accent

#9C48DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3878C7

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

Preview Lab → · Contrast checker → · Palette generator →