#3183CA#3183CA

#3183CA is a mid, vivid cyan. Relative luminance 0.211; OKLCH L 59.5% C 0.134 H 248.5°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#3183CA
RGB	rgb(49, 131, 202)
HSL	hsl(208, 61%, 49%)
HSV	hsv(208, 76%, 79%)
CMYK	cmyk(75.7%, 35.1%, 0%, 20.8%)
CIE-LAB	lab(53.11, -0.30, -43.80)
CIE-LCH	lch(53.11, 43.80, 269.61°)
OKLab	oklab(59.46% -0.0491 -0.1246)
OKLCH	oklch(59.46% 0.134 248.5)
XYZ	xyz(20.0395, 21.1475, 58.8914)
Luminance	0.2115 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183CA #CA7831

analogous

#31CAC5 #3183CA #3137CA

triadic

#3183CA #CA3183 #83CA31

tetradic

#3183CA #C531CA #CA7831 #37CA31

square

#3183CA #C531CA #CA7831 #37CA31

split-complementary

#3183CA #CA3137 #CAC531

monochromatic

#194367 #256399 #3183CA #60A0D8 #91BEE4

Accessibility & contrast

On white

4.02

#3183CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#3183CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183CA

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183CA	#FFFFFF	#000000	##000000
##3183CA	1.00	4.02	5.23	5.23
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6287CD

Deuteranopia (green-blind)

#4C78C9

Tritanopia (blue-blind)

#00949D

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3183ca;
/* rgb */ color: rgb(49, 131, 202);
/* oklch */ color: oklch(59.5% 0.134 248.5);

Tailwind

colors: {
  custom: {
    50: '#7ea6da',
    500: '#3183ca',
    950: '#000000',
  },
}

SCSS

$custom: #3183ca;
$custom-light: #7ea6da;
$custom-dark: #000000;

JSON

{
  "hex": "#3183ca",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 202
  },
  "hsl": {
    "h": 207.843,
    "s": 60.956,
    "l": 49.216
  },
  "oklch": {
    "l": 0.59457,
    "c": 0.1339,
    "h": 248.5
  },
  "luminance": 0.2115
}

Semantic roles & 50–950 ramp

primary

#3183CA

secondary

#CFA988

accent

#8E44E4

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0B0F15

muted

#7C7F83

Preview Lab

Preview with #3183CA

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

Preview Lab → · Contrast checker → · Palette generator →