#3878CF#3878CF

#3878CF is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.5% C 0.149 H 256.9°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3878CF
RGB	rgb(56, 120, 207)
HSL	hsl(215, 61%, 52%)
HSV	hsv(215, 73%, 81%)
CMYK	cmyk(72.9%, 42%, 0%, 18.8%)
CIE-LAB	lab(50.42, 9.11, -50.90)
CIE-LCH	lch(50.42, 51.71, 280.15°)
OKLab	oklab(57.51% -0.0338 -0.1455)
OKLCH	oklch(57.51% 0.149 256.9)
XYZ	xyz(19.6057, 18.7765, 61.6103)
Luminance	0.1878 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878CF #CF8F38

analogous

#38C3CF #3878CF #4438CF

triadic

#3878CF #CF3878 #78CF38

tetradic

#3878CF #CF38C3 #CF8F38 #38CF44

square

#3878CF #CF38C3 #CF8F38 #38CF44

split-complementary

#3878CF #CF4438 #C3CF38

monochromatic

#1B4071 #275CA3 #3878CF #6999DB #9BBBE7

Accessibility & contrast

On white

4.42

#3878CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#3878CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3878CF

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878CF	#FFFFFF	#000000	##000000
##3878CF	1.00	4.42	4.76	4.76
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E80D2

Deuteranopia (green-blind)

#3472CD

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3878cf;
/* rgb */ color: rgb(56, 120, 207);
/* oklch */ color: oklch(57.5% 0.149 256.9);

Tailwind

colors: {
  custom: {
    50: '#829ede',
    500: '#3878cf',
    950: '#000000',
  },
}

SCSS

$custom: #3878cf;
$custom-light: #829ede;
$custom-dark: #000000;

JSON

{
  "hex": "#3878cf",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 207
  },
  "hsl": {
    "h": 214.57,
    "s": 61.134,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57509,
    "c": 0.14937,
    "h": 256.9
  },
  "luminance": 0.18779
}

Semantic roles & 50–950 ramp

primary

#3878CF

secondary

#D3B690

accent

#A044E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3878CF

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

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