#3878BA#3878BA

#3878BA is a mid, vivid cyan. Relative luminance 0.178; OKLCH L 56.2% C 0.122 H 251.5°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3878BA
RGB	rgb(56, 120, 186)
HSL	hsl(210, 54%, 47%)
HSV	hsv(210, 70%, 73%)
CMYK	cmyk(69.9%, 35.5%, 0%, 27.1%)
CIE-LAB	lab(49.27, 1.50, -40.70)
CIE-LCH	lch(49.27, 40.73, 272.11°)
OKLab	oklab(56.24% -0.0387 -0.1156)
OKLCH	oklch(56.24% 0.122 251.5)
XYZ	xyz(17.2070, 17.8170, 48.9770)
Luminance	0.1782 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878BA #BA7A38

analogous

#38B9BA #3878BA #3938BA

triadic

#3878BA #BA3878 #78BA38

tetradic

#3878BA #BA38B9 #BA7A38 #38BA39

square

#3878BA #BA38B9 #BA7A38 #38BA39

split-complementary

#3878BA #BA3938 #B9BA38

monochromatic

#1C3B5C #2A5A8B #3878BA #6097CF #8FB6DD

Accessibility & contrast

On white

4.60

#3878BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#3878BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3878BA

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878BA	#FFFFFF	#000000	##FFFFFF
##3878BA	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7CBD

Deuteranopia (green-blind)

#4870B9

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3878ba;
/* rgb */ color: rgb(56, 120, 186);
/* oklch */ color: oklch(56.2% 0.122 251.5);

Tailwind

colors: {
  custom: {
    50: '#7e9ecf',
    500: '#3878ba',
    950: '#000000',
  },
}

SCSS

$custom: #3878ba;
$custom-light: #7e9ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#3878ba",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 186
  },
  "hsl": {
    "h": 210.462,
    "s": 53.719,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56237,
    "c": 0.12192,
    "h": 251.5
  },
  "luminance": 0.17819
}

Semantic roles & 50–950 ramp

primary

#3878BA

secondary

#C8A786

accent

#954BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3878BA

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

Preview Lab → · Contrast checker → · Palette generator →