#3181AC#3181AC

#3181AC is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.4% C 0.101 H 236.1°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3181AC
RGB	rgb(49, 129, 172)
HSL	hsl(201, 56%, 43%)
HSV	hsv(201, 72%, 67%)
CMYK	cmyk(71.5%, 25%, 0%, 32.5%)
CIE-LAB	lab(51.07, -9.84, -29.81)
CIE-LCH	lch(51.07, 31.39, 251.74°)
OKLab	oklab(57.37% -0.0565 -0.0839)
OKLCH	oklch(57.37% 0.101 236.1)
XYZ	xyz(16.5603, 19.3302, 41.8801)
Luminance	0.1933 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3181AC #AC5C31

analogous

#31AC99 #3181AC #3143AC

triadic

#3181AC #AC3181 #81AC31

tetradic

#3181AC #9931AC #AC5C31 #43AC31

square

#3181AC #9931AC #AC5C31 #43AC31

split-complementary

#3181AC #AC3143 #AC9931

monochromatic

#163A4D #235D7C #3181AC #4EA0CC #7DBADA

Accessibility & contrast

On white

4.32

#3181AC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#3181AC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3181AC

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3181AC	#FFFFFF	#000000	##000000
##3181AC	1.00	4.32	4.87	4.87
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C80AE

Deuteranopia (green-blind)

#5C74AB

Tritanopia (blue-blind)

#008C90

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3181ac;
/* rgb */ color: rgb(49, 129, 172);
/* oklch */ color: oklch(57.4% 0.101 236.1);

Tailwind

colors: {
  custom: {
    50: '#79a5c5',
    500: '#3181ac',
    950: '#000000',
  },
}

SCSS

$custom: #3181ac;
$custom-light: #79a5c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3181ac",
  "rgb": {
    "r": 49,
    "g": 129,
    "b": 172
  },
  "hsl": {
    "h": 200.976,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.57372,
    "c": 0.10114,
    "h": 236.1
  },
  "luminance": 0.19332
}

Semantic roles & 50–950 ramp

primary

#3181AC

secondary

#C39176

accent

#7D49DF

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #3181AC

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

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