#3183A4#3183A4

#3183A4 is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.5% C 0.093 H 228.5°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#3183A4
RGB	rgb(49, 131, 164)
HSL	hsl(197, 54%, 42%)
HSV	hsv(197, 70%, 64%)
CMYK	cmyk(70.1%, 20.1%, 0%, 35.7%)
CIE-LAB	lab(51.34, -13.72, -24.76)
CIE-LCH	lch(51.34, 28.31, 241.01°)
OKLab	oklab(57.47% -0.0614 -0.0694)
OKLCH	oklch(57.47% 0.093 228.5)
XYZ	xyz(16.0811, 19.5641, 38.0435)
Luminance	0.1957 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183A4 #A45231

analogous

#31A48C #3183A4 #314AA4

triadic

#3183A4 #A43183 #83A431

tetradic

#3183A4 #8C31A4 #A45231 #4AA431

square

#3183A4 #8C31A4 #A45231 #4AA431

split-complementary

#3183A4 #A4314A #A48C31

monochromatic

#153846 #235D75 #3183A4 #49A4C9 #79BCD7

Accessibility & contrast

On white

4.27

#3183A4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#3183A4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183A4

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183A4	#FFFFFF	#000000	##000000
##3183A4	1.00	4.27	4.91	4.91
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7281A6

Deuteranopia (green-blind)

#6275A4

Tritanopia (blue-blind)

#008C8E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3183a4;
/* rgb */ color: rgb(49, 131, 164);
/* oklch */ color: oklch(57.5% 0.093 228.5);

Tailwind

colors: {
  custom: {
    50: '#78a7bf',
    500: '#3183a4',
    950: '#000000',
  },
}

SCSS

$custom: #3183a4;
$custom-light: #78a7bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3183a4",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 164
  },
  "hsl": {
    "h": 197.217,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.57474,
    "c": 0.09267,
    "h": 228.5
  },
  "luminance": 0.19566
}

Semantic roles & 50–950 ramp

primary

#3183A4

secondary

#BF8872

accent

#754ADD

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #3183A4

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

Preview Lab → · Contrast checker → · Palette generator →