#3188B3#3188B3

#3188B3 is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.4% C 0.104 H 234.2°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#3188B3
RGB	rgb(49, 136, 179)
HSL	hsl(200, 57%, 45%)
HSV	hsv(200, 73%, 70%)
CMYK	cmyk(72.6%, 24%, 0%, 29.8%)
CIE-LAB	lab(53.51, -11.39, -30.05)
CIE-LCH	lch(53.51, 32.13, 249.24°)
OKLab	oklab(59.41% -0.0611 -0.0845)
OKLCH	oklch(59.41% 0.104 234.2)
XYZ	xyz(18.2042, 21.5139, 45.8323)
Luminance	0.2152 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3188B3 #B35C31

analogous

#31B39D #3188B3 #3147B3

triadic

#3188B3 #B33188 #88B331

tetradic

#3188B3 #9D31B3 #B35C31 #47B331

square

#3188B3 #9D31B3 #B35C31 #47B331

split-complementary

#3188B3 #B33147 #B39D31

monochromatic

#173F53 #246383 #3188B3 #52A6D0 #82BFDD

Accessibility & contrast

On white

3.96

#3188B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#3188B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3188B3

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3188B3	#FFFFFF	#000000	##000000
##3188B3	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7387B5

Deuteranopia (green-blind)

#617AB2

Tritanopia (blue-blind)

#009397

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3188b3;
/* rgb */ color: rgb(49, 136, 179);
/* oklch */ color: oklch(59.4% 0.104 234.2);

Tailwind

colors: {
  custom: {
    50: '#7aaaca',
    500: '#3188b3',
    950: '#000000',
  },
}

SCSS

$custom: #3188b3;
$custom-light: #7aaaca;
$custom-dark: #000000;

JSON

{
  "hex": "#3188b3",
  "rgb": {
    "r": 49,
    "g": 136,
    "b": 179
  },
  "hsl": {
    "h": 199.846,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.59412,
    "c": 0.10429,
    "h": 234.2
  },
  "luminance": 0.21516
}

Semantic roles & 50–950 ramp

primary

#3188B3

secondary

#C6937A

accent

#7A48E0

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #3188B3

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

Preview Lab → · Contrast checker → · Palette generator →