#3183CE#3183CE

#3183CE is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 59.7% C 0.139 H 249.8°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#3183CE
RGB	rgb(49, 131, 206)
HSL	hsl(209, 62%, 50%)
HSV	hsv(209, 76%, 81%)
CMYK	cmyk(76.2%, 36.4%, 0%, 19.2%)
CIE-LAB	lab(53.32, 1.16, -45.73)
CIE-LCH	lch(53.32, 45.75, 271.45°)
OKLab	oklab(59.69% -0.048 -0.1302)
OKLCH	oklch(59.69% 0.139 249.8)
XYZ	xyz(20.5193, 21.3394, 61.4180)
Luminance	0.2134 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183CE #CE7C31

analogous

#31CECA #3183CE #3135CE

triadic

#3183CE #CE3183 #83CE31

tetradic

#3183CE #CA31CE #CE7C31 #35CE31

square

#3183CE #CA31CE #CE7C31 #35CE31

split-complementary

#3183CE #CE3135 #CECA31

monochromatic

#19446B #25649D #3183CE #62A1DA #94BFE6

Accessibility & contrast

On white

3.99

#3183CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#3183CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183CE

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183CE	#FFFFFF	#000000	##000000
##3183CE	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6087D1

Deuteranopia (green-blind)

#4979CD

Tritanopia (blue-blind)

#00959F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3183ce;
/* rgb */ color: rgb(49, 131, 206);
/* oklch */ color: oklch(59.7% 0.139 249.8);

Tailwind

colors: {
  custom: {
    50: '#7fa6dd',
    500: '#3183ce',
    950: '#000000',
  },
}

SCSS

$custom: #3183ce;
$custom-light: #7fa6dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3183ce",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 206
  },
  "hsl": {
    "h": 208.662,
    "s": 61.569,
    "l": 50
  },
  "oklch": {
    "l": 0.59689,
    "c": 0.13882,
    "h": 249.8
  },
  "luminance": 0.21342
}

Semantic roles & 50–950 ramp

primary

#3183CE

secondary

#D1AC8A

accent

#9043E5

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3183CE

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

Preview Lab → · Contrast checker → · Palette generator →