#218BA9#218BA9

#218BA9 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.3% C 0.101 H 222.1°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#218BA9
RGB	rgb(33, 139, 169)
HSL	hsl(193, 67%, 40%)
HSV	hsv(193, 80%, 66%)
CMYK	cmyk(80.5%, 17.8%, 0%, 33.7%)
CIE-LAB	lab(53.65, -18.42, -24.11)
CIE-LCH	lch(53.65, 30.34, 232.61°)
OKLab	oklab(59.29% -0.0749 -0.0675)
OKLCH	oklch(59.29% 0.101 222.1)
XYZ	xyz(17.0182, 21.6510, 40.8105)
Luminance	0.2165 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218BA9 #A93F21

analogous

#21A983 #218BA9 #2147A9

triadic

#218BA9 #A9218B #8BA921

tetradic

#218BA9 #8321A9 #A93F21 #47A921

square

#218BA9 #8321A9 #A93F21 #47A921

split-complementary

#218BA9 #A92147 #A98321

monochromatic

#0D3743 #176176 #218BA9 #31B2D7 #64C5E1

Accessibility & contrast

On white

3.94

#218BA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#218BA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218BA9

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218BA9	#FFFFFF	#000000	##000000
##218BA9	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7987AB

Deuteranopia (green-blind)

#687BA9

Tritanopia (blue-blind)

#009495

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #218ba9;
/* rgb */ color: rgb(33, 139, 169);
/* oklch */ color: oklch(59.3% 0.101 222.1);

Tailwind

colors: {
  custom: {
    50: '#74adc2',
    500: '#218ba9',
    950: '#000000',
  },
}

SCSS

$custom: #218ba9;
$custom-light: #74adc2;
$custom-dark: #000000;

JSON

{
  "hex": "#218ba9",
  "rgb": {
    "r": 33,
    "g": 139,
    "b": 169
  },
  "hsl": {
    "h": 193.235,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.5929,
    "c": 0.10085,
    "h": 222.1
  },
  "luminance": 0.21653
}

Semantic roles & 50–950 ramp

primary

#218BA9

secondary

#C67660

accent

#643EEA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #218BA9

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

Preview Lab → · Contrast checker → · Palette generator →