#3F83D5#3F83D5

#3F83D5 is a mid, vivid cyan. Relative luminance 0.221; OKLCH L 60.6% C 0.143 H 254.7°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#3F83D5
RGB	rgb(63, 131, 213)
HSL	hsl(213, 64%, 54%)
HSV	hsv(213, 70%, 84%)
CMYK	cmyk(70.4%, 38.5%, 0%, 16.5%)
CIE-LAB	lab(54.12, 5.54, -48.39)
CIE-LCH	lch(54.12, 48.70, 276.53°)
OKLab	oklab(60.56% -0.0378 -0.1379)
OKLCH	oklch(60.56% 0.143 254.7)
XYZ	xyz(22.1720, 22.0911, 66.0334)
Luminance	0.2209 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83D5 #D5913F

analogous

#3FCED5 #3F83D5 #463FD5

triadic

#3F83D5 #D53F83 #83D53F

tetradic

#3F83D5 #D53FCE #D5913F #3FD546

square

#3F83D5 #D53FCE #D5913F #3FD546

split-complementary

#3F83D5 #D5463F #CED53F

monochromatic

#1C487E #2765B0 #3F83D5 #71A3E0 #A3C4EB

Accessibility & contrast

On white

3.88

#3F83D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#3F83D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83D5

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83D5	#FFFFFF	#000000	##000000
##3F83D5	1.00	3.88	5.42	5.42
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D89D8

Deuteranopia (green-blind)

#467BD3

Tritanopia (blue-blind)

#0096A2

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3f83d5;
/* rgb */ color: rgb(63, 131, 213);
/* oklch */ color: oklch(60.6% 0.143 254.7);

Tailwind

colors: {
  custom: {
    50: '#85a6e2',
    500: '#3f83d5',
    950: '#000000',
  },
}

SCSS

$custom: #3f83d5;
$custom-light: #85a6e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83d5",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 213
  },
  "hsl": {
    "h": 212.8,
    "s": 64.103,
    "l": 54.118
  },
  "oklch": {
    "l": 0.60561,
    "c": 0.14294,
    "h": 254.7
  },
  "luminance": 0.22093
}

Semantic roles & 50–950 ramp

primary

#3F83D5

secondary

#D8BB98

accent

#9C41E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F83D5

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

Preview Lab → · Contrast checker → · Palette generator →