#3181C4#3181C4

#3181C4 is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.7% C 0.128 H 247.6°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#3181C4
RGB	rgb(49, 129, 196)
HSL	hsl(207, 60%, 48%)
HSV	hsv(207, 75%, 77%)
CMYK	cmyk(75%, 34.2%, 0%, 23.1%)
CIE-LAB	lab(52.22, -1.29, -41.80)
CIE-LCH	lch(52.22, 41.82, 268.24°)
OKLab	oklab(58.65% -0.0489 -0.1188)
OKLCH	oklch(58.65% 0.128 247.6)
XYZ	xyz(19.0769, 20.3368, 55.1338)
Luminance	0.2034 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3181C4 #C47431

analogous

#31C4BD #3181C4 #3137C4

triadic

#3181C4 #C43181 #81C431

tetradic

#3181C4 #BD31C4 #C47431 #37C431

square

#3181C4 #BD31C4 #C47431 #37C431

split-complementary

#3181C4 #C43137 #C4BD31

monochromatic

#194162 #256193 #3181C4 #5C9FD6 #8DBBE2

Accessibility & contrast

On white

4.14

#3181C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#3181C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3181C4

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3181C4	#FFFFFF	#000000	##000000
##3181C4	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6284C7

Deuteranopia (green-blind)

#4D76C3

Tritanopia (blue-blind)

#009199

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3181c4;
/* rgb */ color: rgb(49, 129, 196);
/* oklch */ color: oklch(58.7% 0.128 247.6);

Tailwind

colors: {
  custom: {
    50: '#7da5d6',
    500: '#3181c4',
    950: '#000000',
  },
}

SCSS

$custom: #3181c4;
$custom-light: #7da5d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3181c4",
  "rgb": {
    "r": 49,
    "g": 129,
    "b": 196
  },
  "hsl": {
    "h": 207.347,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.58653,
    "c": 0.12844,
    "h": 247.6
  },
  "luminance": 0.20339
}

Semantic roles & 50–950 ramp

primary

#3181C4

secondary

#CDA584

accent

#8D45E3

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3181C4

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

Preview Lab → · Contrast checker → · Palette generator →