#3183CF#3183CF

#3183CF is a mid, vivid cyan. Relative luminance 0.214; OKLCH L 59.7% C 0.140 H 250.1°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#3183CF
RGB	rgb(49, 131, 207)
HSL	hsl(209, 62%, 50%)
HSV	hsv(209, 76%, 81%)
CMYK	cmyk(76.3%, 36.7%, 0%, 18.8%)
CIE-LAB	lab(53.37, 1.52, -46.22)
CIE-LCH	lch(53.37, 46.24, 271.89°)
OKLab	oklab(59.75% -0.0478 -0.1317)
OKLCH	oklch(59.75% 0.14 250.1)
XYZ	xyz(20.6411, 21.3881, 62.0598)
Luminance	0.2139 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183CF #CF7D31

analogous

#31CFCC #3183CF #3134CF

triadic

#3183CF #CF3183 #83CF31

tetradic

#3183CF #CC31CF #CF7D31 #34CF31

square

#3183CF #CC31CF #CF7D31 #34CF31

split-complementary

#3183CF #CF3134 #CFCC31

monochromatic

#19446C #25649E #3183CF #63A1DB #94BFE6

Accessibility & contrast

On white

3.98

#3183CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#3183CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183CF

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183CF	#FFFFFF	#000000	##000000
##3183CF	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6087D2

Deuteranopia (green-blind)

#4879CE

Tritanopia (blue-blind)

#00959F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3183cf;
/* rgb */ color: rgb(49, 131, 207);
/* oklch */ color: oklch(59.7% 0.140 250.1);

Tailwind

colors: {
  custom: {
    50: '#7fa6de',
    500: '#3183cf',
    950: '#000000',
  },
}

SCSS

$custom: #3183cf;
$custom-light: #7fa6de;
$custom-dark: #000000;

JSON

{
  "hex": "#3183cf",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 207
  },
  "hsl": {
    "h": 208.861,
    "s": 62.205,
    "l": 50.196
  },
  "oklch": {
    "l": 0.59747,
    "c": 0.14007,
    "h": 250.1
  },
  "luminance": 0.21391
}

Semantic roles & 50–950 ramp

primary

#3183CF

secondary

#D1AD8B

accent

#9143E5

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3183CF

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

Preview Lab → · Contrast checker → · Palette generator →