#3181A5#3181A5

#3181A5 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.0% C 0.094 H 231.3°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3181A5
RGB	rgb(49, 129, 165)
HSL	hsl(199, 54%, 42%)
HSV	hsv(199, 70%, 65%)
CMYK	cmyk(70.3%, 21.8%, 0%, 35.3%)
CIE-LAB	lab(50.77, -12.26, -26.23)
CIE-LCH	lch(50.77, 28.95, 244.96°)
OKLab	oklab(57.03% -0.059 -0.0736)
OKLCH	oklch(57.03% 0.094 231.3)
XYZ	xyz(15.9057, 19.0683, 38.4323)
Luminance	0.1907 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3181A5 #A55531

analogous

#31A58F #3181A5 #3147A5

triadic

#3181A5 #A53181 #81A531

tetradic

#3181A5 #8F31A5 #A55531 #47A531

square

#3181A5 #8F31A5 #A55531 #47A531

split-complementary

#3181A5 #A53147 #A58F31

monochromatic

#153747 #235C76 #3181A5 #4AA2C9 #79BAD7

Accessibility & contrast

On white

4.36

#3181A5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#3181A5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3181A5

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3181A5	#FFFFFF	#000000	##000000
##3181A5	1.00	4.36	4.81	4.81
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7FA7

Deuteranopia (green-blind)

#5F74A4

Tritanopia (blue-blind)

#008B8D

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3181a5;
/* rgb */ color: rgb(49, 129, 165);
/* oklch */ color: oklch(57.0% 0.094 231.3);

Tailwind

colors: {
  custom: {
    50: '#78a5bf',
    500: '#3181a5',
    950: '#000000',
  },
}

SCSS

$custom: #3181a5;
$custom-light: #78a5bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3181a5",
  "rgb": {
    "r": 49,
    "g": 129,
    "b": 165
  },
  "hsl": {
    "h": 198.621,
    "s": 54.206,
    "l": 41.961
  },
  "oklch": {
    "l": 0.5703,
    "c": 0.09431,
    "h": 231.3
  },
  "luminance": 0.1907
}

Semantic roles & 50–950 ramp

primary

#3181A5

secondary

#C08A72

accent

#784ADE

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #3181A5

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

Preview Lab → · Contrast checker → · Palette generator →