#218AA1#218AA1

#218AA1 is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 58.7% C 0.096 H 216.5°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#218AA1
RGB	rgb(33, 138, 161)
HSL	hsl(191, 66%, 38%)
HSV	hsv(191, 80%, 63%)
CMYK	cmyk(79.5%, 14.3%, 0%, 36.9%)
CIE-LAB	lab(53.03, -20.62, -20.46)
CIE-LCH	lch(53.03, 29.05, 224.78°)
OKLab	oklab(58.68% -0.0771 -0.0572)
OKLCH	oklch(58.68% 0.096 216.5)
XYZ	xyz(16.1460, 21.0715, 36.9275)
Luminance	0.2107 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218AA1 #A13821

analogous

#21A178 #218AA1 #214AA1

triadic

#218AA1 #A1218A #8AA121

tetradic

#218AA1 #7821A1 #A13821 #4AA121

square

#218AA1 #7821A1 #A13821 #4AA121

split-complementary

#218AA1 #A1214A #A17821

monochromatic

#0C333B #175E6E #218AA1 #2CB5D4 #5EC7DE

Accessibility & contrast

On white

4.03

#218AA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#218AA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218AA1

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218AA1	#FFFFFF	#000000	##000000
##218AA1	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B86A2

Deuteranopia (green-blind)

#6A79A1

Tritanopia (blue-blind)

#009291

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #218aa1;
/* rgb */ color: rgb(33, 138, 161);
/* oklch */ color: oklch(58.7% 0.096 216.5);

Tailwind

colors: {
  custom: {
    50: '#73acbc',
    500: '#218aa1',
    950: '#000000',
  },
}

SCSS

$custom: #218aa1;
$custom-light: #73acbc;
$custom-dark: #000000;

JSON

{
  "hex": "#218aa1",
  "rgb": {
    "r": 33,
    "g": 138,
    "b": 161
  },
  "hsl": {
    "h": 190.781,
    "s": 65.979,
    "l": 38.039
  },
  "oklch": {
    "l": 0.58682,
    "c": 0.09599,
    "h": 216.5
  },
  "luminance": 0.21073
}

Semantic roles & 50–950 ramp

primary

#218AA1

secondary

#C36E5B

accent

#5D3FE9

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #218AA1

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

Preview Lab → · Contrast checker → · Palette generator →