#3188BD#3188BD

#3188BD is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.9% C 0.115 H 239.8°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3188BD
RGB	rgb(49, 136, 189)
HSL	hsl(203, 59%, 47%)
HSV	hsv(203, 74%, 74%)
CMYK	cmyk(74.1%, 28%, 0%, 25.9%)
CIE-LAB	lab(53.96, -7.89, -35.07)
CIE-LCH	lch(53.96, 35.94, 257.32°)
OKLab	oklab(59.92% -0.0577 -0.0991)
OKLCH	oklch(59.92% 0.115 239.8)
XYZ	xyz(19.2525, 21.9332, 51.3531)
Luminance	0.2193 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3188BD #BD6631

analogous

#31BDAC #3188BD #3142BD

triadic

#3188BD #BD3188 #88BD31

tetradic

#3188BD #AC31BD #BD6631 #42BD31

square

#3188BD #AC31BD #BD6631 #42BD31

split-complementary

#3188BD #BD3142 #BDAC31

monochromatic

#18425C #24658C #3188BD #58A5D4 #88BFE0

Accessibility & contrast

On white

3.90

#3188BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#3188BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3188BD

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3188BD	#FFFFFF	#000000	##000000
##3188BD	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F88BF

Deuteranopia (green-blind)

#5C7BBC

Tritanopia (blue-blind)

#00959A

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3188bd;
/* rgb */ color: rgb(49, 136, 189);
/* oklch */ color: oklch(59.9% 0.115 239.8);

Tailwind

colors: {
  custom: {
    50: '#7caad1',
    500: '#3188bd',
    950: '#000000',
  },
}

SCSS

$custom: #3188bd;
$custom-light: #7caad1;
$custom-dark: #000000;

JSON

{
  "hex": "#3188bd",
  "rgb": {
    "r": 49,
    "g": 136,
    "b": 189
  },
  "hsl": {
    "h": 202.714,
    "s": 58.824,
    "l": 46.667
  },
  "oklch": {
    "l": 0.59917,
    "c": 0.11464,
    "h": 239.8
  },
  "luminance": 0.21935
}

Semantic roles & 50–950 ramp

primary

#3188BD

secondary

#CA9C80

accent

#8146E2

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3188BD

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

Preview Lab → · Contrast checker → · Palette generator →