#3183B5#3183B5

#3183B5 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.3% C 0.109 H 239.6°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3183B5
RGB	rgb(49, 131, 181)
HSL	hsl(203, 57%, 45%)
HSV	hsv(203, 73%, 71%)
CMYK	cmyk(72.9%, 27.6%, 0%, 29%)
CIE-LAB	lab(52.08, -7.83, -33.41)
CIE-LCH	lch(52.08, 34.32, 256.81°)
OKLab	oklab(58.31% -0.0554 -0.0943)
OKLCH	oklch(58.31% 0.109 239.6)
XYZ	xyz(17.7202, 20.2197, 46.6760)
Luminance	0.2022 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183B5 #B56331

analogous

#31B5A5 #3183B5 #3141B5

triadic

#3183B5 #B53183 #83B531

tetradic

#3183B5 #A531B5 #B56331 #41B531

square

#3183B5 #A531B5 #B56331 #41B531

split-complementary

#3183B5 #B53141 #B5A531

monochromatic

#173D55 #246085 #3183B5 #53A1D0 #83BBDD

Accessibility & contrast

On white

4.16

#3183B5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#3183B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183B5

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183B5	#FFFFFF	#000000	##000000
##3183B5	1.00	4.16	5.04	5.04
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C83B7

Deuteranopia (green-blind)

#5A77B4

Tritanopia (blue-blind)

#009094

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3183b5;
/* rgb */ color: rgb(49, 131, 181);
/* oklch */ color: oklch(58.3% 0.109 239.6);

Tailwind

colors: {
  custom: {
    50: '#7aa6cb',
    500: '#3183b5',
    950: '#000000',
  },
}

SCSS

$custom: #3183b5;
$custom-light: #7aa6cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3183b5",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 181
  },
  "hsl": {
    "h": 202.727,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.58311,
    "c": 0.1094,
    "h": 239.6
  },
  "luminance": 0.20222
}

Semantic roles & 50–950 ramp

primary

#3183B5

secondary

#C7987B

accent

#8147E1

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #3183B5

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

Preview Lab → · Contrast checker → · Palette generator →