#3183BE#3183BE

#3183BE is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.8% C 0.120 H 243.9°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3183BE
RGB	rgb(49, 131, 190)
HSL	hsl(205, 59%, 47%)
HSV	hsv(205, 74%, 75%)
CMYK	cmyk(74.2%, 31.1%, 0%, 25.5%)
CIE-LAB	lab(52.51, -4.63, -37.91)
CIE-LCH	lch(52.51, 38.19, 263.03°)
OKLab	oklab(58.79% -0.0525 -0.1074)
OKLCH	oklch(58.79% 0.12 243.9)
XYZ	xyz(18.6736, 20.6011, 51.6975)
Luminance	0.2060 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183BE #BE6C31

analogous

#31BEB3 #3183BE #313DBE

triadic

#3183BE #BE3183 #83BE31

tetradic

#3183BE #B331BE #BE6C31 #3DBE31

square

#3183BE #B331BE #BE6C31 #3DBE31

split-complementary

#3183BE #BE313D #BEB331

monochromatic

#18405D #24618D #3183BE #58A0D4 #89BCE1

Accessibility & contrast

On white

4.10

#3183BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#3183BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183BE

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183BE	#FFFFFF	#000000	##000000
##3183BE	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6885C1

Deuteranopia (green-blind)

#5477BD

Tritanopia (blue-blind)

#009198

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3183be;
/* rgb */ color: rgb(49, 131, 190);
/* oklch */ color: oklch(58.8% 0.120 243.9);

Tailwind

colors: {
  custom: {
    50: '#7ca6d2',
    500: '#3183be',
    950: '#000000',
  },
}

SCSS

$custom: #3183be;
$custom-light: #7ca6d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3183be",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 190
  },
  "hsl": {
    "h": 205.106,
    "s": 58.996,
    "l": 46.863
  },
  "oklch": {
    "l": 0.58788,
    "c": 0.11955,
    "h": 243.9
  },
  "luminance": 0.20603
}

Semantic roles & 50–950 ramp

primary

#3183BE

secondary

#CA9F80

accent

#8746E2

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3183BE

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

Preview Lab → · Contrast checker → · Palette generator →