#3183AA#3183AA

#3183AA is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 57.8% C 0.098 H 232.9°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#3183AA
RGB	rgb(49, 131, 170)
HSL	hsl(199, 55%, 43%)
HSV	hsv(199, 71%, 67%)
CMYK	cmyk(71.2%, 22.9%, 0%, 33.3%)
CIE-LAB	lab(51.59, -11.67, -27.84)
CIE-LCH	lch(51.59, 30.19, 247.26°)
OKLab	oklab(57.76% -0.0592 -0.0782)
OKLCH	oklch(57.76% 0.098 232.9)
XYZ	xyz(16.6357, 19.7860, 40.9647)
Luminance	0.1979 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183AA #AA5831

analogous

#31AA94 #3183AA #3146AA

triadic

#3183AA #AA3183 #83AA31

tetradic

#3183AA #9431AA #AA5831 #46AA31

square

#3183AA #9431AA #AA5831 #46AA31

split-complementary

#3183AA #AA3146 #AA9431

monochromatic

#163A4B #235E7A #3183AA #4DA3CC #7CBBD9

Accessibility & contrast

On white

4.24

#3183AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#3183AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183AA

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183AA	#FFFFFF	#000000	##000000
##3183AA	1.00	4.24	4.96	4.96
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7082AC

Deuteranopia (green-blind)

#5F76A9

Tritanopia (blue-blind)

#008D90

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3183aa;
/* rgb */ color: rgb(49, 131, 170);
/* oklch */ color: oklch(57.8% 0.098 232.9);

Tailwind

colors: {
  custom: {
    50: '#79a7c3',
    500: '#3183aa',
    950: '#000000',
  },
}

SCSS

$custom: #3183aa;
$custom-light: #79a7c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3183aa",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 170
  },
  "hsl": {
    "h": 199.339,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5776,
    "c": 0.09811,
    "h": 232.9
  },
  "luminance": 0.19788
}

Semantic roles & 50–950 ramp

primary

#3183AA

secondary

#C28E75

accent

#7949DF

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #3183AA

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

Preview Lab → · Contrast checker → · Palette generator →