#3F83CD#3F83CD

#3F83CD is a mid, vivid cyan. Relative luminance 0.217; OKLCH L 60.1% C 0.133 H 252.6°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#3F83CD
RGB	rgb(63, 131, 205)
HSL	hsl(211, 59%, 53%)
HSV	hsv(211, 69%, 80%)
CMYK	cmyk(69.3%, 36.1%, 0%, 19.6%)
CIE-LAB	lab(53.70, 2.70, -44.53)
CIE-LCH	lch(53.70, 44.62, 273.47°)
OKLab	oklab(60.09% -0.0397 -0.1266)
OKLCH	oklch(60.09% 0.133 252.6)
XYZ	xyz(21.1816, 21.6949, 60.8170)
Luminance	0.2170 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83CD #CD893F

analogous

#3FCACD #3F83CD #423FCD

triadic

#3F83CD #CD3F83 #83CD3F

tetradic

#3F83CD #CD3FCA #CD893F #3FCD42

square

#3F83CD #CD3FCA #CD893F #3FCD42

split-complementary

#3F83CD #CD423F #CACD3F

monochromatic

#1E4774 #2B65A4 #3F83CD #70A2DA #A0C2E6

Accessibility & contrast

On white

3.93

#3F83CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#3F83CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83CD

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83CD	#FFFFFF	#000000	##000000
##3F83CD	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)

#6288D0

Deuteranopia (green-blind)

#4D7ACC

Tritanopia (blue-blind)

#00949E

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3f83cd;
/* rgb */ color: rgb(63, 131, 205);
/* oklch */ color: oklch(60.1% 0.133 252.6);

Tailwind

colors: {
  custom: {
    50: '#84a6dc',
    500: '#3f83cd',
    950: '#000000',
  },
}

SCSS

$custom: #3f83cd;
$custom-light: #84a6dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83cd",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 205
  },
  "hsl": {
    "h": 211.268,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.60094,
    "c": 0.13267,
    "h": 252.6
  },
  "luminance": 0.21697
}

Semantic roles & 50–950 ramp

primary

#3F83CD

secondary

#D3B595

accent

#9746E2

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F83CD

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

Preview Lab → · Contrast checker → · Palette generator →