#2188A4#2188A4

#2188A4 is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.3% C 0.098 H 221.0°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#2188A4
RGB	rgb(33, 136, 164)
HSL	hsl(193, 66%, 39%)
HSV	hsv(193, 80%, 64%)
CMYK	cmyk(79.9%, 17.1%, 0%, 35.7%)
CIE-LAB	lab(52.52, -18.53, -22.97)
CIE-LCH	lch(52.52, 29.51, 231.12°)
OKLab	oklab(58.31% -0.0739 -0.0643)
OKLCH	oklch(58.31% 0.098 221)
XYZ	xyz(16.1294, 20.6100, 38.2428)
Luminance	0.2061 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2188A4 #A43D21

analogous

#21A47E #2188A4 #2147A4

triadic

#2188A4 #A42188 #88A421

tetradic

#2188A4 #7E21A4 #A43D21 #47A421

square

#2188A4 #7E21A4 #A43D21 #47A421

split-complementary

#2188A4 #A42147 #A47E21

monochromatic

#0C333E #175E71 #2188A4 #2DB1D5 #60C4DF

Accessibility & contrast

On white

4.10

#2188A4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#2188A4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2188A4

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2188A4	#FFFFFF	#000000	##000000
##2188A4	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7784A5

Deuteranopia (green-blind)

#6678A4

Tritanopia (blue-blind)

#009191

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #2188a4;
/* rgb */ color: rgb(33, 136, 164);
/* oklch */ color: oklch(58.3% 0.098 221.0);

Tailwind

colors: {
  custom: {
    50: '#73aabf',
    500: '#2188a4',
    950: '#000000',
  },
}

SCSS

$custom: #2188a4;
$custom-light: #73aabf;
$custom-dark: #000000;

JSON

{
  "hex": "#2188a4",
  "rgb": {
    "r": 33,
    "g": 136,
    "b": 164
  },
  "hsl": {
    "h": 192.824,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.58312,
    "c": 0.09799,
    "h": 221
  },
  "luminance": 0.20612
}

Semantic roles & 50–950 ramp

primary

#2188A4

secondary

#C4735D

accent

#633EE9

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #2188A4

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

Preview Lab → · Contrast checker → · Palette generator →