#3183B0#3183B0

#3183B0 is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 58.1% C 0.104 H 236.7°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#3183B0
RGB	rgb(49, 131, 176)
HSL	hsl(201, 56%, 44%)
HSV	hsv(201, 72%, 69%)
CMYK	cmyk(72.2%, 25.6%, 0%, 31%)
CIE-LAB	lab(51.86, -9.59, -30.89)
CIE-LCH	lch(51.86, 32.35, 252.76°)
OKLab	oklab(58.06% -0.0571 -0.087)
OKLCH	oklch(58.06% 0.104 236.7)
XYZ	xyz(17.2163, 20.0182, 44.0224)
Luminance	0.2002 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183B0 #B05E31

analogous

#31B09E #3183B0 #3144B0

triadic

#3183B0 #B03183 #83B031

tetradic

#3183B0 #9E31B0 #B05E31 #44B031

square

#3183B0 #9E31B0 #B05E31 #44B031

split-complementary

#3183B0 #B03144 #B09E31

monochromatic

#163C50 #245F80 #3183B0 #50A2CE #80BBDC

Accessibility & contrast

On white

4.20

#3183B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#3183B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183B0

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183B0	#FFFFFF	#000000	##000000
##3183B0	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E82B2

Deuteranopia (green-blind)

#5C76AF

Tritanopia (blue-blind)

#008F92

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3183b0;
/* rgb */ color: rgb(49, 131, 176);
/* oklch */ color: oklch(58.1% 0.104 236.7);

Tailwind

colors: {
  custom: {
    50: '#7aa7c7',
    500: '#3183b0',
    950: '#000000',
  },
}

SCSS

$custom: #3183b0;
$custom-light: #7aa7c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3183b0",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 176
  },
  "hsl": {
    "h": 201.26,
    "s": 56.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.58056,
    "c": 0.10408,
    "h": 236.7
  },
  "luminance": 0.2002
}

Semantic roles & 50–950 ramp

primary

#3183B0

secondary

#C59378

accent

#7E48E0

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #3183B0

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

Preview Lab → · Contrast checker → · Palette generator →