#3878D1#3878D1

#3878D1 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.6% C 0.152 H 257.3°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3878D1
RGB	rgb(56, 120, 209)
HSL	hsl(215, 62%, 52%)
HSV	hsv(215, 73%, 82%)
CMYK	cmyk(73.2%, 42.6%, 0%, 18%)
CIE-LAB	lab(50.54, 9.85, -51.85)
CIE-LCH	lch(50.54, 52.78, 280.75°)
OKLab	oklab(57.64% -0.0334 -0.1483)
OKLCH	oklch(57.64% 0.152 257.3)
XYZ	xyz(19.8518, 18.8749, 62.9062)
Luminance	0.1888 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878D1 #D19138

analogous

#38C5D1 #3878D1 #4538D1

triadic

#3878D1 #D13878 #78D138

tetradic

#3878D1 #D138C5 #D19138 #38D145

square

#3878D1 #D138C5 #D19138 #38D145

split-complementary

#3878D1 #D14538 #C5D138

monochromatic

#1B4074 #265CA6 #3878D1 #6A9ADC #9BBBE8

Accessibility & contrast

On white

4.40

#3878D1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#3878D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3878D1

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878D1	#FFFFFF	#000000	##000000
##3878D1	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C80D4

Deuteranopia (green-blind)

#3172CF

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3878d1;
/* rgb */ color: rgb(56, 120, 209);
/* oklch */ color: oklch(57.6% 0.152 257.3);

Tailwind

colors: {
  custom: {
    50: '#829edf',
    500: '#3878d1',
    950: '#000000',
  },
}

SCSS

$custom: #3878d1;
$custom-light: #829edf;
$custom-dark: #000000;

JSON

{
  "hex": "#3878d1",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 209
  },
  "hsl": {
    "h": 214.902,
    "s": 62.449,
    "l": 51.961
  },
  "oklch": {
    "l": 0.57636,
    "c": 0.152,
    "h": 257.3
  },
  "luminance": 0.18877
}

Semantic roles & 50–950 ramp

primary

#3878D1

secondary

#D4B891

accent

#A142E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3878D1

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

Preview Lab → · Contrast checker → · Palette generator →