#3183C4#3183C4

#3183C4 is a mid, vivid cyan. Relative luminance 0.209; OKLCH L 59.1% C 0.127 H 246.4°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#3183C4
RGB	rgb(49, 131, 196)
HSL	hsl(207, 60%, 48%)
HSV	hsv(207, 75%, 77%)
CMYK	cmyk(75%, 33.2%, 0%, 23.1%)
CIE-LAB	lab(52.81, -2.47, -40.87)
CIE-LCH	lch(52.81, 40.94, 266.54°)
OKLab	oklab(59.12% -0.0508 -0.116)
OKLCH	oklch(59.12% 0.127 246.4)
XYZ	xyz(19.3429, 20.8688, 55.2225)
Luminance	0.2087 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183C4 #C47231

analogous

#31C4BC #3183C4 #3139C4

triadic

#3183C4 #C43183 #83C431

tetradic

#3183C4 #BC31C4 #C47231 #39C431

square

#3183C4 #BC31C4 #C47231 #39C431

split-complementary

#3183C4 #C43139 #C4BC31

monochromatic

#194262 #256293 #3183C4 #5CA0D6 #8DBDE2

Accessibility & contrast

On white

4.06

#3183C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#3183C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183C4

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183C4	#FFFFFF	#000000	##000000
##3183C4	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6586C7

Deuteranopia (green-blind)

#5078C3

Tritanopia (blue-blind)

#00939A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3183c4;
/* rgb */ color: rgb(49, 131, 196);
/* oklch */ color: oklch(59.1% 0.127 246.4);

Tailwind

colors: {
  custom: {
    50: '#7da6d6',
    500: '#3183c4',
    950: '#000000',
  },
}

SCSS

$custom: #3183c4;
$custom-light: #7da6d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3183c4",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 196
  },
  "hsl": {
    "h": 206.531,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.59118,
    "c": 0.12663,
    "h": 246.4
  },
  "luminance": 0.20871
}

Semantic roles & 50–950 ramp

primary

#3183C4

secondary

#CDA484

accent

#8B45E3

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3183C4

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

Preview Lab → · Contrast checker → · Palette generator →