#3878C8#3878C8

#3878C8 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 57.1% C 0.140 H 255.4°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#3878C8
RGB	rgb(56, 120, 200)
HSL	hsl(213, 57%, 50%)
HSV	hsv(213, 72%, 78%)
CMYK	cmyk(72%, 40%, 0%, 21.6%)
CIE-LAB	lab(50.03, 6.56, -47.54)
CIE-LCH	lch(50.03, 47.99, 277.86°)
OKLab	oklab(57.07% -0.0353 -0.1356)
OKLCH	oklch(57.07% 0.14 255.4)
XYZ	xyz(18.7688, 18.4418, 57.2028)
Luminance	0.1844 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878C8 #C88838

analogous

#38C0C8 #3878C8 #4038C8

triadic

#3878C8 #C83878 #78C838

tetradic

#3878C8 #C838C0 #C88838 #38C840

square

#3878C8 #C838C0 #C88838 #38C840

split-complementary

#3878C8 #C84038 #C0C838

monochromatic

#1D3F69 #2A5B99 #3878C8 #6899D5 #98B9E3

Accessibility & contrast

On white

4.48

#3878C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#3878C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3878C8

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878C8	#FFFFFF	#000000	##000000
##3878C8	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#527ECB

Deuteranopia (green-blind)

#3C71C6

Tritanopia (blue-blind)

#008B96

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3878c8;
/* rgb */ color: rgb(56, 120, 200);
/* oklch */ color: oklch(57.1% 0.140 255.4);

Tailwind

colors: {
  custom: {
    50: '#809ed9',
    500: '#3878c8',
    950: '#000000',
  },
}

SCSS

$custom: #3878c8;
$custom-light: #809ed9;
$custom-dark: #000000;

JSON

{
  "hex": "#3878c8",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 200
  },
  "hsl": {
    "h": 213.333,
    "s": 56.693,
    "l": 50.196
  },
  "oklch": {
    "l": 0.57072,
    "c": 0.14015,
    "h": 255.4
  },
  "luminance": 0.18444
}

Semantic roles & 50–950 ramp

primary

#3878C8

secondary

#CEB18E

accent

#9C48E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3878C8

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

Preview Lab → · Contrast checker → · Palette generator →