#3183B3#3183B3

#3183B3 is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 58.2% C 0.107 H 238.5°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#3183B3
RGB	rgb(49, 131, 179)
HSL	hsl(202, 57%, 45%)
HSV	hsv(202, 73%, 70%)
CMYK	cmyk(72.6%, 26.8%, 0%, 29.8%)
CIE-LAB	lab(51.99, -8.54, -32.41)
CIE-LCH	lch(51.99, 33.51, 255.24°)
OKLab	oklab(58.21% -0.0561 -0.0914)
OKLCH	oklch(58.21% 0.107 238.5)
XYZ	xyz(17.5164, 20.1383, 45.6030)
Luminance	0.2014 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183B3 #B36131

analogous

#31B3A2 #3183B3 #3142B3

triadic

#3183B3 #B33183 #83B331

tetradic

#3183B3 #A231B3 #B36131 #42B331

square

#3183B3 #A231B3 #B36131 #42B331

split-complementary

#3183B3 #B33142 #B3A231

monochromatic

#173D53 #246083 #3183B3 #52A1D0 #82BBDD

Accessibility & contrast

On white

4.18

#3183B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#3183B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183B3

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183B3	#FFFFFF	#000000	##000000
##3183B3	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C83B5

Deuteranopia (green-blind)

#5B76B2

Tritanopia (blue-blind)

#008F94

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3183b3;
/* rgb */ color: rgb(49, 131, 179);
/* oklch */ color: oklch(58.2% 0.107 238.5);

Tailwind

colors: {
  custom: {
    50: '#7aa6ca',
    500: '#3183b3',
    950: '#000000',
  },
}

SCSS

$custom: #3183b3;
$custom-light: #7aa6ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3183b3",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 179
  },
  "hsl": {
    "h": 202.154,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.58209,
    "c": 0.10724,
    "h": 238.5
  },
  "luminance": 0.2014
}

Semantic roles & 50–950 ramp

primary

#3183B3

secondary

#C6967A

accent

#8048E0

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #3183B3

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

Preview Lab → · Contrast checker → · Palette generator →