#3878BE#3878BE

#3878BE is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.5% C 0.127 H 252.8°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3878BE
RGB	rgb(56, 120, 190)
HSL	hsl(211, 54%, 48%)
HSV	hsv(211, 71%, 75%)
CMYK	cmyk(70.5%, 36.8%, 0%, 25.5%)
CIE-LAB	lab(49.48, 2.94, -42.67)
CIE-LCH	lch(49.48, 42.77, 273.94°)
OKLab	oklab(56.47% -0.0377 -0.1214)
OKLCH	oklch(56.47% 0.127 252.8)
XYZ	xyz(17.6382, 17.9895, 51.2480)
Luminance	0.1799 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878BE #BE7E38

analogous

#38BBBE #3878BE #3B38BE

triadic

#3878BE #BE3878 #78BE38

tetradic

#3878BE #BE38BB #BE7E38 #38BE3B

square

#3878BE #BE38BB #BE7E38 #38BE3B

split-complementary

#3878BE #BE3B38 #BBBE38

monochromatic

#1C3C5F #2A5A8F #3878BE #6297D1 #92B6DF

Accessibility & contrast

On white

4.57

#3878BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3878BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3878BE

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878BE	#FFFFFF	#000000	##000000
##3878BE	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#587CC1

Deuteranopia (green-blind)

#4570BD

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3878be;
/* rgb */ color: rgb(56, 120, 190);
/* oklch */ color: oklch(56.5% 0.127 252.8);

Tailwind

colors: {
  custom: {
    50: '#7e9ed2',
    500: '#3878be',
    950: '#000000',
  },
}

SCSS

$custom: #3878be;
$custom-light: #7e9ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#3878be",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 190
  },
  "hsl": {
    "h": 211.343,
    "s": 54.472,
    "l": 48.235
  },
  "oklch": {
    "l": 0.5647,
    "c": 0.12708,
    "h": 252.8
  },
  "luminance": 0.17991
}

Semantic roles & 50–950 ramp

primary

#3878BE

secondary

#CAAA88

accent

#974ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3878BE

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

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