#218BBC#218BBC

#218BBC is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.2% C 0.117 H 234.5°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#218BBC
RGB	rgb(33, 139, 188)
HSL	hsl(199, 70%, 43%)
HSV	hsv(199, 82%, 74%)
CMYK	cmyk(82.4%, 26.1%, 0%, 26.3%)
CIE-LAB	lab(54.47, -11.73, -33.72)
CIE-LCH	lch(54.47, 35.70, 250.83°)
OKLab	oklab(60.21% -0.0678 -0.0952)
OKLCH	oklch(60.21% 0.117 234.5)
XYZ	xyz(18.9332, 22.4170, 50.8962)
Luminance	0.2242 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218BBC #BC5221

analogous

#21BC9F #218BBC #213DBC

triadic

#218BBC #BC218B #8BBC21

tetradic

#218BBC #9F21BC #BC5221 #3DBC21

square

#218BBC #9F21BC #BC5221 #3DBC21

split-complementary

#218BBC #BC213D #BC9F21

monochromatic

#0F3E54 #186588 #218BBC #3DAADD #71C1E6

Accessibility & contrast

On white

3.83

#218BBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#218BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218BBC

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218BBC	#FFFFFF	#000000	##000000
##218BBC	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#738ABE

Deuteranopia (green-blind)

#5E7CBB

Tritanopia (blue-blind)

#00989C

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #218bbc;
/* rgb */ color: rgb(33, 139, 188);
/* oklch */ color: oklch(60.2% 0.117 234.5);

Tailwind

colors: {
  custom: {
    50: '#77acd0',
    500: '#218bbc',
    950: '#000000',
  },
}

SCSS

$custom: #218bbc;
$custom-light: #77acd0;
$custom-dark: #000000;

JSON

{
  "hex": "#218bbc",
  "rgb": {
    "r": 33,
    "g": 139,
    "b": 188
  },
  "hsl": {
    "h": 198.968,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.60208,
    "c": 0.11695,
    "h": 234.5
  },
  "luminance": 0.22419
}

Semantic roles & 50–950 ramp

primary

#218BBC

secondary

#CD8B6C

accent

#733BED

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0A1014

muted

#7C7F82

Preview Lab

Preview with #218BBC

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

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