#3181C9#3181C9

#3181C9 is a mid, vivid cyan. Relative luminance 0.206; OKLCH L 58.9% C 0.135 H 249.3°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#3181C9
RGB	rgb(49, 129, 201)
HSL	hsl(208, 61%, 49%)
HSV	hsv(208, 76%, 79%)
CMYK	cmyk(75.6%, 35.8%, 0%, 21.2%)
CIE-LAB	lab(52.47, 0.53, -44.24)
CIE-LCH	lch(52.47, 44.24, 270.69°)
OKLab	oklab(58.94% -0.0475 -0.1259)
OKLCH	oklch(58.94% 0.135 249.3)
XYZ	xyz(19.6555, 20.5682, 58.1812)
Luminance	0.2057 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3181C9 #C97931

analogous

#31C9C5 #3181C9 #3135C9

triadic

#3181C9 #C93181 #81C931

tetradic

#3181C9 #C531C9 #C97931 #35C931

square

#3181C9 #C531C9 #C97931 #35C931

split-complementary

#3181C9 #C93135 #C9C531

monochromatic

#194267 #256198 #3181C9 #5F9FD8 #90BCE4

Accessibility & contrast

On white

4.11

#3181C9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#3181C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3181C9

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3181C9	#FFFFFF	#000000	##000000
##3181C9	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6085CC

Deuteranopia (green-blind)

#4977C8

Tritanopia (blue-blind)

#00929B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3181c9;
/* rgb */ color: rgb(49, 129, 201);
/* oklch */ color: oklch(58.9% 0.135 249.3);

Tailwind

colors: {
  custom: {
    50: '#7ea5da',
    500: '#3181c9',
    950: '#000000',
  },
}

SCSS

$custom: #3181c9;
$custom-light: #7ea5da;
$custom-dark: #000000;

JSON

{
  "hex": "#3181c9",
  "rgb": {
    "r": 49,
    "g": 129,
    "b": 201
  },
  "hsl": {
    "h": 208.421,
    "s": 60.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.5894,
    "c": 0.13458,
    "h": 249.3
  },
  "luminance": 0.20571
}

Semantic roles & 50–950 ramp

primary

#3181C9

secondary

#CFA987

accent

#9044E4

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F15

muted

#7C7F83

Preview Lab

Preview with #3181C9

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

Preview Lab → · Contrast checker → · Palette generator →