#3F83D4#3F83D4

#3F83D4 is a mid, vivid cyan. Relative luminance 0.220; OKLCH L 60.5% C 0.142 H 254.4°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#3F83D4
RGB	rgb(63, 131, 212)
HSL	hsl(213, 63%, 54%)
HSV	hsv(213, 70%, 83%)
CMYK	cmyk(70.3%, 38.2%, 0%, 16.9%)
CIE-LAB	lab(54.07, 5.18, -47.91)
CIE-LCH	lch(54.07, 48.19, 276.17°)
OKLab	oklab(60.5% -0.038 -0.1365)
OKLCH	oklch(60.5% 0.142 254.4)
XYZ	xyz(22.0455, 22.0405, 65.3670)
Luminance	0.2204 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83D4 #D4903F

analogous

#3FCED4 #3F83D4 #463FD4

triadic

#3F83D4 #D43F83 #83D43F

tetradic

#3F83D4 #D43FCE #D4903F #3FD446

square

#3F83D4 #D43FCE #D4903F #3FD446

split-complementary

#3F83D4 #D4463F #CED43F

monochromatic

#1C487D #2765AF #3F83D4 #71A3DF #A3C4EA

Accessibility & contrast

On white

3.88

#3F83D4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#3F83D4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83D4

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83D4	#FFFFFF	#000000	##000000
##3F83D4	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E89D7

Deuteranopia (green-blind)

#477BD2

Tritanopia (blue-blind)

#0096A1

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3f83d4;
/* rgb */ color: rgb(63, 131, 212);
/* oklch */ color: oklch(60.5% 0.142 254.4);

Tailwind

colors: {
  custom: {
    50: '#85a6e1',
    500: '#3f83d4',
    950: '#000000',
  },
}

SCSS

$custom: #3f83d4;
$custom-light: #85a6e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83d4",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 212
  },
  "hsl": {
    "h": 212.617,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.60502,
    "c": 0.14165,
    "h": 254.4
  },
  "luminance": 0.22043
}

Semantic roles & 50–950 ramp

primary

#3F83D4

secondary

#D7BA98

accent

#9B41E6

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F83D4

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

Preview Lab → · Contrast checker → · Palette generator →