#3183B6#3183B6

#3183B6 is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.4% C 0.110 H 240.1°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3183B6
RGB	rgb(49, 131, 182)
HSL	hsl(203, 58%, 45%)
HSV	hsv(203, 73%, 71%)
CMYK	cmyk(73.1%, 28%, 0%, 28.6%)
CIE-LAB	lab(52.13, -7.48, -33.92)
CIE-LCH	lch(52.13, 34.73, 257.56°)
OKLab	oklab(58.36% -0.0551 -0.0958)
OKLCH	oklch(58.36% 0.11 240.1)
XYZ	xyz(17.8231, 20.2609, 47.2183)
Luminance	0.2026 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183B6 #B66431

analogous

#31B6A7 #3183B6 #3140B6

triadic

#3183B6 #B63183 #83B631

tetradic

#3183B6 #A731B6 #B66431 #40B631

square

#3183B6 #A731B6 #B66431 #40B631

split-complementary

#3183B6 #B63140 #B6A731

monochromatic

#173E56 #246086 #3183B6 #53A1D1 #84BBDE

Accessibility & contrast

On white

4.16

#3183B6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#3183B6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183B6

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183B6	#FFFFFF	#000000	##000000
##3183B6	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B83B8

Deuteranopia (green-blind)

#5977B5

Tritanopia (blue-blind)

#009095

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3183b6;
/* rgb */ color: rgb(49, 131, 182);
/* oklch */ color: oklch(58.4% 0.110 240.1);

Tailwind

colors: {
  custom: {
    50: '#7ba6cc',
    500: '#3183b6',
    950: '#000000',
  },
}

SCSS

$custom: #3183b6;
$custom-light: #7ba6cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3183b6",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 182
  },
  "hsl": {
    "h": 203.008,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.58363,
    "c": 0.11049,
    "h": 240.1
  },
  "luminance": 0.20263
}

Semantic roles & 50–950 ramp

primary

#3183B6

secondary

#C7997C

accent

#8247E1

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3183B6

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

Preview Lab → · Contrast checker → · Palette generator →