#3183A8#3183A8

#3183A8 is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 57.7% C 0.096 H 231.5°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3183A8
RGB	rgb(49, 131, 168)
HSL	hsl(199, 55%, 43%)
HSV	hsv(199, 71%, 66%)
CMYK	cmyk(70.8%, 22%, 0%, 34.1%)
CIE-LAB	lab(51.51, -12.36, -26.82)
CIE-LCH	lch(51.51, 29.53, 245.26°)
OKLab	oklab(57.66% -0.0599 -0.0753)
OKLCH	oklch(57.66% 0.096 231.5)
XYZ	xyz(16.4480, 19.7109, 39.9759)
Luminance	0.1971 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183A8 #A85631

analogous

#31A891 #3183A8 #3148A8

triadic

#3183A8 #A83183 #83A831

tetradic

#3183A8 #9131A8 #A85631 #48A831

square

#3183A8 #9131A8 #A85631 #48A831

split-complementary

#3183A8 #A83148 #A89131

monochromatic

#153949 #235E79 #3183A8 #4CA3CB #7BBBD8

Accessibility & contrast

On white

4.25

#3183A8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#3183A8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183A8

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183A8	#FFFFFF	#000000	##000000
##3183A8	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7081AA

Deuteranopia (green-blind)

#6076A7

Tritanopia (blue-blind)

#008D8F

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3183a8;
/* rgb */ color: rgb(49, 131, 168);
/* oklch */ color: oklch(57.7% 0.096 231.5);

Tailwind

colors: {
  custom: {
    50: '#78a7c2',
    500: '#3183a8',
    950: '#000000',
  },
}

SCSS

$custom: #3183a8;
$custom-light: #78a7c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3183a8",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 168
  },
  "hsl": {
    "h": 198.655,
    "s": 54.839,
    "l": 42.549
  },
  "oklch": {
    "l": 0.57663,
    "c": 0.09623,
    "h": 231.5
  },
  "luminance": 0.19713
}

Semantic roles & 50–950 ramp

primary

#3183A8

secondary

#C18C74

accent

#784ADE

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #3183A8

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

Preview Lab → · Contrast checker → · Palette generator →