#3F83C3#3F83C3

#3F83C3 is a mid, vivid cyan. Relative luminance 0.212; OKLCH L 59.5% C 0.120 H 249.3°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#3F83C3
RGB	rgb(63, 131, 195)
HSL	hsl(209, 52%, 51%)
HSV	hsv(209, 68%, 76%)
CMYK	cmyk(67.7%, 32.8%, 0%, 23.5%)
CIE-LAB	lab(53.20, -0.81, -39.65)
CIE-LCH	lch(53.20, 39.66, 268.84°)
OKLab	oklab(59.53% -0.0424 -0.1123)
OKLCH	oklch(59.53% 0.12 249.3)
XYZ	xyz(20.0129, 21.2274, 54.6618)
Luminance	0.2123 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83C3 #C37F3F

analogous

#3FC3C1 #3F83C3 #3F41C3

triadic

#3F83C3 #C33F83 #83C33F

tetradic

#3F83C3 #C13FC3 #C37F3F #41C33F

square

#3F83C3 #C13FC3 #C37F3F #41C33F

split-complementary

#3F83C3 #C33F41 #C3C13F

monochromatic

#204567 #2F6496 #3F83C3 #6EA1D2 #9CBFE0

Accessibility & contrast

On white

4.00

#3F83C3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#3F83C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83C3

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83C3	#FFFFFF	#000000	##000000
##3F83C3	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6786C6

Deuteranopia (green-blind)

#5479C2

Tritanopia (blue-blind)

#00929A

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3f83c3;
/* rgb */ color: rgb(63, 131, 195);
/* oklch */ color: oklch(59.5% 0.120 249.3);

Tailwind

colors: {
  custom: {
    50: '#82a6d5',
    500: '#3f83c3',
    950: '#000000',
  },
}

SCSS

$custom: #3f83c3;
$custom-light: #82a6d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83c3",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 195
  },
  "hsl": {
    "h": 209.091,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.59534,
    "c": 0.12005,
    "h": 249.3
  },
  "luminance": 0.21229
}

Semantic roles & 50–950 ramp

primary

#3F83C3

secondary

#CCAE92

accent

#924CDC

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #3F83C3

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

Preview Lab → · Contrast checker → · Palette generator →