#2188BD#2188BD

#2188BD is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.5% C 0.120 H 237.3°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#2188BD
RGB	rgb(33, 136, 189)
HSL	hsl(200, 70%, 44%)
HSV	hsv(200, 83%, 74%)
CMYK	cmyk(82.5%, 28%, 0%, 25.9%)
CIE-LAB	lab(53.60, -9.66, -35.64)
CIE-LCH	lch(53.60, 36.93, 254.83°)
OKLab	oklab(59.54% -0.0648 -0.1009)
OKLCH	oklch(59.54% 0.12 237.3)
XYZ	xyz(18.6130, 21.6034, 51.3231)
Luminance	0.2161 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2188BD #BD5621

analogous

#21BDA4 #2188BD #213ABD

triadic

#2188BD #BD2188 #88BD21

tetradic

#2188BD #A421BD #BD5621 #3ABD21

square

#2188BD #A421BD #BD5621 #3ABD21

split-complementary

#2188BD #BD213A #BDA421

monochromatic

#0F3D55 #186389 #2188BD #3EA7DD #72BFE6

Accessibility & contrast

On white

3.95

#2188BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#2188BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2188BD

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2188BD	#FFFFFF	#000000	##000000
##2188BD	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E88BF

Deuteranopia (green-blind)

#5A7ABC

Tritanopia (blue-blind)

#00969A

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #2188bd;
/* rgb */ color: rgb(33, 136, 189);
/* oklch */ color: oklch(59.5% 0.120 237.3);

Tailwind

colors: {
  custom: {
    50: '#77aad1',
    500: '#2188bd',
    950: '#000000',
  },
}

SCSS

$custom: #2188bd;
$custom-light: #77aad1;
$custom-dark: #000000;

JSON

{
  "hex": "#2188bd",
  "rgb": {
    "r": 33,
    "g": 136,
    "b": 189
  },
  "hsl": {
    "h": 200.385,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.59536,
    "c": 0.11987,
    "h": 237.3
  },
  "luminance": 0.21606
}

Semantic roles & 50–950 ramp

primary

#2188BD

secondary

#CD8D6D

accent

#773BED

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0A1014

muted

#7C7F82

Preview Lab

Preview with #2188BD

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

Preview Lab → · Contrast checker → · Palette generator →