#3878C6#3878C6

#3878C6 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.9% C 0.138 H 254.9°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3878C6
RGB	rgb(56, 120, 198)
HSL	hsl(213, 56%, 50%)
HSV	hsv(213, 72%, 78%)
CMYK	cmyk(71.7%, 39.4%, 0%, 22.4%)
CIE-LAB	lab(49.92, 5.83, -46.57)
CIE-LCH	lch(49.92, 46.94, 277.14°)
OKLab	oklab(56.95% -0.0357 -0.1328)
OKLCH	oklch(56.95% 0.138 254.9)
XYZ	xyz(18.5366, 18.3489, 55.9799)
Luminance	0.1835 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878C6 #C68638

analogous

#38BFC6 #3878C6 #3F38C6

triadic

#3878C6 #C63878 #78C638

tetradic

#3878C6 #C638BF #C68638 #38C63F

square

#3878C6 #C638BF #C68638 #38C63F

split-complementary

#3878C6 #C63F38 #BFC638

monochromatic

#1D3E67 #2B5B96 #3878C6 #6798D4 #97B9E2

Accessibility & contrast

On white

4.50

#3878C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#3878C6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3878C6

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878C6	#FFFFFF	#000000	##000000
##3878C6	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#547EC9

Deuteranopia (green-blind)

#3E71C4

Tritanopia (blue-blind)

#008A95

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3878c6;
/* rgb */ color: rgb(56, 120, 198);
/* oklch */ color: oklch(56.9% 0.138 254.9);

Tailwind

colors: {
  custom: {
    50: '#809ed8',
    500: '#3878c6',
    950: '#000000',
  },
}

SCSS

$custom: #3878c6;
$custom-light: #809ed8;
$custom-dark: #000000;

JSON

{
  "hex": "#3878c6",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 198
  },
  "hsl": {
    "h": 212.958,
    "s": 55.906,
    "l": 49.804
  },
  "oklch": {
    "l": 0.56949,
    "c": 0.13753,
    "h": 254.9
  },
  "luminance": 0.18351
}

Semantic roles & 50–950 ramp

primary

#3878C6

secondary

#CDB08D

accent

#9B49DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3878C6

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

Preview Lab → · Contrast checker → · Palette generator →