#3983CC#3983CC

#3983CC is a mid, vivid cyan. Relative luminance 0.215; OKLCH L 59.8% C 0.134 H 250.8°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#3983CC
RGB	rgb(57, 131, 204)
HSL	hsl(210, 59%, 51%)
HSV	hsv(210, 72%, 80%)
CMYK	cmyk(72.1%, 35.8%, 0%, 20%)
CIE-LAB	lab(53.45, 1.47, -44.38)
CIE-LCH	lch(53.45, 44.40, 271.90°)
OKLab	oklab(59.82% -0.0439 -0.1262)
OKLCH	oklch(59.82% 0.134 250.8)
XYZ	xyz(20.6986, 21.4598, 60.1663)
Luminance	0.2146 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3983CC #CC8239

analogous

#39CCCB #3983CC #3939CC

triadic

#3983CC #CC3983 #83CC39

tetradic

#3983CC #CB39CC #CC8239 #39CC39

square

#3983CC #CB39CC #CC8239 #39CC39

split-complementary

#3983CC #CC3939 #CCCB39

monochromatic

#1C466E #29649F #3983CC #6AA1D9 #9AC0E5

Accessibility & contrast

On white

3.97

#3983CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#3983CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3983CC

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3983CC	#FFFFFF	#000000	##000000
##3983CC	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6287CF

Deuteranopia (green-blind)

#4C79CB

Tritanopia (blue-blind)

#00949E

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3983cc;
/* rgb */ color: rgb(57, 131, 204);
/* oklch */ color: oklch(59.8% 0.134 250.8);

Tailwind

colors: {
  custom: {
    50: '#81a6dc',
    500: '#3983cc',
    950: '#000000',
  },
}

SCSS

$custom: #3983cc;
$custom-light: #81a6dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3983cc",
  "rgb": {
    "r": 57,
    "g": 131,
    "b": 204
  },
  "hsl": {
    "h": 209.796,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.59823,
    "c": 0.13362,
    "h": 250.8
  },
  "luminance": 0.21462
}

Semantic roles & 50–950 ramp

primary

#3983CC

secondary

#D1B090

accent

#9346E2

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3983CC

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

Preview Lab → · Contrast checker → · Palette generator →