#3188BC#3188BC

#3188BC is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.9% C 0.114 H 239.3°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#3188BC
RGB	rgb(49, 136, 188)
HSL	hsl(202, 59%, 46%)
HSV	hsv(202, 74%, 74%)
CMYK	cmyk(73.9%, 27.7%, 0%, 26.3%)
CIE-LAB	lab(53.91, -8.24, -34.57)
CIE-LCH	lch(53.91, 35.54, 256.59°)
OKLab	oklab(59.87% -0.058 -0.0976)
OKLCH	oklch(59.87% 0.114 239.3)
XYZ	xyz(19.1443, 21.8899, 50.7834)
Luminance	0.2189 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3188BC #BC6531

analogous

#31BCAB #3188BC #3143BC

triadic

#3188BC #BC3188 #88BC31

tetradic

#3188BC #AB31BC #BC6531 #43BC31

square

#3188BC #AB31BC #BC6531 #43BC31

split-complementary

#3188BC #BC3143 #BCAB31

monochromatic

#18425B #24658B #3188BC #57A5D3 #88BFE0

Accessibility & contrast

On white

3.90

#3188BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#3188BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3188BC

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3188BC	#FFFFFF	#000000	##000000
##3188BC	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7088BE

Deuteranopia (green-blind)

#5D7BBB

Tritanopia (blue-blind)

#00959A

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3188bc;
/* rgb */ color: rgb(49, 136, 188);
/* oklch */ color: oklch(59.9% 0.114 239.3);

Tailwind

colors: {
  custom: {
    50: '#7caad0',
    500: '#3188bc',
    950: '#000000',
  },
}

SCSS

$custom: #3188bc;
$custom-light: #7caad0;
$custom-dark: #000000;

JSON

{
  "hex": "#3188bc",
  "rgb": {
    "r": 49,
    "g": 136,
    "b": 188
  },
  "hsl": {
    "h": 202.446,
    "s": 58.65,
    "l": 46.471
  },
  "oklch": {
    "l": 0.59865,
    "c": 0.11356,
    "h": 239.3
  },
  "luminance": 0.21892
}

Semantic roles & 50–950 ramp

primary

#3188BC

secondary

#CA9B7F

accent

#8046E2

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3188BC

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

Preview Lab → · Contrast checker → · Palette generator →