#3183B9#3183B9

#3183B9 is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.5% C 0.114 H 241.6°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#3183B9
RGB	rgb(49, 131, 185)
HSL	hsl(204, 58%, 46%)
HSV	hsv(204, 74%, 73%)
CMYK	cmyk(73.5%, 29.2%, 0%, 27.5%)
CIE-LAB	lab(52.27, -6.42, -35.42)
CIE-LCH	lch(52.27, 36.00, 259.73°)
OKLab	oklab(58.52% -0.0541 -0.1001)
OKLCH	oklch(58.52% 0.114 241.6)
XYZ	xyz(18.1365, 20.3863, 48.8686)
Luminance	0.2039 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183B9 #B96731

analogous

#31B9AB #3183B9 #313FB9

triadic

#3183B9 #B93183 #83B931

tetradic

#3183B9 #AB31B9 #B96731 #3FB931

square

#3183B9 #AB31B9 #B96731 #3FB931

split-complementary

#3183B9 #B9313F #B9AB31

monochromatic

#173E58 #246189 #3183B9 #55A0D2 #86BBDF

Accessibility & contrast

On white

4.14

#3183B9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#3183B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183B9

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183B9	#FFFFFF	#000000	##000000
##3183B9	1.00	4.14	5.08	5.08
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A84BB

Deuteranopia (green-blind)

#5777B8

Tritanopia (blue-blind)

#009096

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3183b9;
/* rgb */ color: rgb(49, 131, 185);
/* oklch */ color: oklch(58.5% 0.114 241.6);

Tailwind

colors: {
  custom: {
    50: '#7ba6ce',
    500: '#3183b9',
    950: '#000000',
  },
}

SCSS

$custom: #3183b9;
$custom-light: #7ba6ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3183b9",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 185
  },
  "hsl": {
    "h": 203.824,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.5852,
    "c": 0.11383,
    "h": 241.6
  },
  "luminance": 0.20388
}

Semantic roles & 50–950 ramp

primary

#3183B9

secondary

#C89B7D

accent

#8446E1

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3183B9

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

Preview Lab → · Contrast checker → · Palette generator →