#3188AB#3188AB

#3188AB is a mid, moderate cyan. Relative luminance 0.212; OKLCH L 59.0% C 0.097 H 228.7°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#3188AB
RGB	rgb(49, 136, 171)
HSL	hsl(197, 55%, 43%)
HSV	hsv(197, 71%, 67%)
CMYK	cmyk(71.3%, 20.5%, 0%, 32.9%)
CIE-LAB	lab(53.17, -14.13, -25.98)
CIE-LCH	lch(53.17, 29.57, 241.46°)
OKLab	oklab(59.03% -0.064 -0.0728)
OKLCH	oklch(59.03% 0.097 228.7)
XYZ	xyz(17.4185, 21.1996, 41.6941)
Luminance	0.2120 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3188AB #AB5431

analogous

#31AB91 #3188AB #314BAB

triadic

#3188AB #AB3188 #88AB31

tetradic

#3188AB #9131AB #AB5431 #4BAB31

square

#3188AB #9131AB #AB5431 #4BAB31

split-complementary

#3188AB #AB314B #AB9131

monochromatic

#163C4C #23627B #3188AB #4DA8CC #7DBFDA

Accessibility & contrast

On white

4.01

#3188AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#3188AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3188AB

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3188AB	#FFFFFF	#000000	##000000
##3188AB	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7686AD

Deuteranopia (green-blind)

#657AAB

Tritanopia (blue-blind)

#009294

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3188ab;
/* rgb */ color: rgb(49, 136, 171);
/* oklch */ color: oklch(59.0% 0.097 228.7);

Tailwind

colors: {
  custom: {
    50: '#79aac4',
    500: '#3188ab',
    950: '#000000',
  },
}

SCSS

$custom: #3188ab;
$custom-light: #79aac4;
$custom-dark: #000000;

JSON

{
  "hex": "#3188ab",
  "rgb": {
    "r": 49,
    "g": 136,
    "b": 171
  },
  "hsl": {
    "h": 197.213,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.59029,
    "c": 0.09696,
    "h": 228.7
  },
  "luminance": 0.21202
}

Semantic roles & 50–950 ramp

primary

#3188AB

secondary

#C28C75

accent

#7449DF

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #3188AB

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

Preview Lab → · Contrast checker → · Palette generator →