#3F86BB#3F86BB

#3F86BB is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.8% C 0.108 H 243.6°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#3F86BB
RGB	rgb(63, 134, 187)
HSL	hsl(206, 50%, 49%)
HSV	hsv(206, 66%, 73%)
CMYK	cmyk(66.3%, 28.3%, 0%, 26.7%)
CIE-LAB	lab(53.70, -5.33, -34.29)
CIE-LCH	lch(53.70, 34.71, 261.17°)
OKLab	oklab(59.81% -0.0479 -0.0967)
OKLCH	oklch(59.81% 0.108 243.6)
XYZ	xyz(19.5412, 21.6928, 50.1614)
Luminance	0.2170 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F86BB #BB743F

analogous

#3FBBB2 #3F86BB #3F48BB

triadic

#3F86BB #BB3F86 #86BB3F

tetradic

#3F86BB #B23FBB #BB743F #48BB3F

square

#3F86BB #B23FBB #BB743F #48BB3F

split-complementary

#3F86BB #BB3F48 #BBB23F

monochromatic

#20445F #30658D #3F86BB #6AA3CD #98BFDC

Accessibility & contrast

On white

3.93

#3F86BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#3F86BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F86BB

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F86BB	#FFFFFF	#000000	##000000
##3F86BB	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E87BD

Deuteranopia (green-blind)

#5D7BBA

Tritanopia (blue-blind)

#009398

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3f86bb;
/* rgb */ color: rgb(63, 134, 187);
/* oklch */ color: oklch(59.8% 0.108 243.6);

Tailwind

colors: {
  custom: {
    50: '#81a9cf',
    500: '#3f86bb',
    950: '#000000',
  },
}

SCSS

$custom: #3f86bb;
$custom-light: #81a9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f86bb",
  "rgb": {
    "r": 63,
    "g": 134,
    "b": 187
  },
  "hsl": {
    "h": 205.645,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.59805,
    "c": 0.10793,
    "h": 243.6
  },
  "luminance": 0.21695
}

Semantic roles & 50–950 ramp

primary

#3F86BB

secondary

#C8A78E

accent

#8A4FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3F86BB

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

Preview Lab → · Contrast checker → · Palette generator →