#3F83D7#3F83D7

#3F83D7 is a mid, vivid cyan. Relative luminance 0.222; OKLCH L 60.7% C 0.146 H 255.1°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#3F83D7
RGB	rgb(63, 131, 215)
HSL	hsl(213, 66%, 55%)
HSV	hsv(213, 71%, 84%)
CMYK	cmyk(70.7%, 39.1%, 0%, 15.7%)
CIE-LAB	lab(54.23, 6.25, -49.34)
CIE-LCH	lch(54.23, 49.74, 277.22°)
OKLab	oklab(60.68% -0.0373 -0.1407)
OKLCH	oklch(60.68% 0.146 255.1)
XYZ	xyz(22.4274, 22.1932, 67.3786)
Luminance	0.2220 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83D7 #D7933F

analogous

#3FCFD7 #3F83D7 #473FD7

triadic

#3F83D7 #D73F83 #83D73F

tetradic

#3F83D7 #D73FCF #D7933F #3FD747

square

#3F83D7 #D73FCF #D7933F #3FD747

split-complementary

#3F83D7 #D7473F #CFD73F

monochromatic

#1B4881 #2565B3 #3F83D7 #72A4E2 #A4C4EC

Accessibility & contrast

On white

3.86

#3F83D7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#3F83D7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83D7

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83D7	#FFFFFF	#000000	##000000
##3F83D7	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C89DA

Deuteranopia (green-blind)

#457BD5

Tritanopia (blue-blind)

#0097A2

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3f83d7;
/* rgb */ color: rgb(63, 131, 215);
/* oklch */ color: oklch(60.7% 0.146 255.1);

Tailwind

colors: {
  custom: {
    50: '#86a6e4',
    500: '#3f83d7',
    950: '#000000',
  },
}

SCSS

$custom: #3f83d7;
$custom-light: #86a6e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83d7",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 215
  },
  "hsl": {
    "h": 213.158,
    "s": 65.517,
    "l": 54.51
  },
  "oklch": {
    "l": 0.6068,
    "c": 0.14553,
    "h": 255.1
  },
  "luminance": 0.22196
}

Semantic roles & 50–950 ramp

primary

#3F83D7

secondary

#D9BC99

accent

#9D3FE8

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C0F15

muted

#7D7F84

Preview Lab

Preview with #3F83D7

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

Preview Lab → · Contrast checker → · Palette generator →