#3181C5#3181C5

#3181C5 is a mid, vivid cyan. Relative luminance 0.204; OKLCH L 58.7% C 0.130 H 248.0°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#3181C5
RGB	rgb(49, 129, 197)
HSL	hsl(208, 60%, 48%)
HSV	hsv(208, 75%, 77%)
CMYK	cmyk(75.1%, 34.5%, 0%, 22.7%)
CIE-LAB	lab(52.27, -0.92, -42.29)
CIE-LCH	lch(52.27, 42.30, 268.75°)
OKLab	oklab(58.71% -0.0486 -0.1202)
OKLCH	oklch(58.71% 0.13 248)
XYZ	xyz(19.1911, 20.3825, 55.7353)
Luminance	0.2039 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3181C5 #C57531

analogous

#31C5BF #3181C5 #3137C5

triadic

#3181C5 #C53181 #81C531

tetradic

#3181C5 #BF31C5 #C57531 #37C531

square

#3181C5 #BF31C5 #C57531 #37C531

split-complementary

#3181C5 #C53137 #C5BF31

monochromatic

#194163 #256194 #3181C5 #5D9FD7 #8EBCE3

Accessibility & contrast

On white

4.14

#3181C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#3181C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3181C5

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3181C5	#FFFFFF	#000000	##000000
##3181C5	1.00	4.14	5.08	5.08
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6284C8

Deuteranopia (green-blind)

#4C76C4

Tritanopia (blue-blind)

#00919A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3181c5;
/* rgb */ color: rgb(49, 129, 197);
/* oklch */ color: oklch(58.7% 0.130 248.0);

Tailwind

colors: {
  custom: {
    50: '#7da5d7',
    500: '#3181c5',
    950: '#000000',
  },
}

SCSS

$custom: #3181c5;
$custom-light: #7da5d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3181c5",
  "rgb": {
    "r": 49,
    "g": 129,
    "b": 197
  },
  "hsl": {
    "h": 207.568,
    "s": 60.163,
    "l": 48.235
  },
  "oklch": {
    "l": 0.5871,
    "c": 0.12966,
    "h": 248
  },
  "luminance": 0.20385
}

Semantic roles & 50–950 ramp

primary

#3181C5

secondary

#CDA685

accent

#8D44E3

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3181C5

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

Preview Lab → · Contrast checker → · Palette generator →