#3188AA#3188AA

#3188AA is a mid, moderate cyan. Relative luminance 0.212; OKLCH L 59.0% C 0.096 H 228.0°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#3188AA
RGB	rgb(49, 136, 170)
HSL	hsl(197, 55%, 43%)
HSV	hsv(197, 71%, 67%)
CMYK	cmyk(71.2%, 20%, 0%, 33.3%)
CIE-LAB	lab(53.13, -14.47, -25.47)
CIE-LCH	lch(53.13, 29.29, 240.40°)
OKLab	oklab(58.98% -0.0644 -0.0714)
OKLCH	oklch(58.98% 0.096 228)
XYZ	xyz(17.3236, 21.1616, 41.1940)
Luminance	0.2116 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3188AA #AA5331

analogous

#31AA90 #3188AA #314BAA

triadic

#3188AA #AA3188 #88AA31

tetradic

#3188AA #9031AA #AA5331 #4BAA31

square

#3188AA #9031AA #AA5331 #4BAA31

split-complementary

#3188AA #AA314B #AA9031

monochromatic

#163C4B #23627A #3188AA #4DA8CC #7CBFD9

Accessibility & contrast

On white

4.01

#3188AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#3188AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3188AA

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3188AA	#FFFFFF	#000000	##000000
##3188AA	1.00	4.01	5.23	5.23
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7686AC

Deuteranopia (green-blind)

#667AAA

Tritanopia (blue-blind)

#009293

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3188aa;
/* rgb */ color: rgb(49, 136, 170);
/* oklch */ color: oklch(59.0% 0.096 228.0);

Tailwind

colors: {
  custom: {
    50: '#79aac3',
    500: '#3188aa',
    950: '#000000',
  },
}

SCSS

$custom: #3188aa;
$custom-light: #79aac3;
$custom-dark: #000000;

JSON

{
  "hex": "#3188aa",
  "rgb": {
    "r": 49,
    "g": 136,
    "b": 170
  },
  "hsl": {
    "h": 196.86,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.58982,
    "c": 0.0961,
    "h": 228
  },
  "luminance": 0.21164
}

Semantic roles & 50–950 ramp

primary

#3188AA

secondary

#C28B75

accent

#7349DF

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #3188AA

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

Preview Lab → · Contrast checker → · Palette generator →