#218EB2#218EB2

#218EB2 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.5% C 0.107 H 225.9°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#218EB2
RGB	rgb(33, 142, 178)
HSL	hsl(195, 69%, 41%)
HSV	hsv(195, 81%, 70%)
CMYK	cmyk(81.5%, 20.2%, 0%, 30.2%)
CIE-LAB	lab(54.95, -16.93, -27.26)
CIE-LCH	lch(54.95, 32.09, 238.16°)
OKLab	oklab(60.45% -0.0743 -0.0766)
OKLCH	oklch(60.45% 0.107 225.9)
XYZ	xyz(18.3327, 22.8814, 45.5612)
Luminance	0.2288 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218EB2 #B24521

analogous

#21B28E #218EB2 #2145B2

triadic

#218EB2 #B2218E #8EB221

tetradic

#218EB2 #8E21B2 #B24521 #45B221

square

#218EB2 #8E21B2 #B24521 #45B221

split-complementary

#218EB2 #B22145 #B28E21

monochromatic

#0E3C4B #17657E #218EB2 #36B1DA #6AC5E3

Accessibility & contrast

On white

3.77

#218EB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#218EB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218EB2

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218EB2	#FFFFFF	#000000	##000000
##218EB2	1.00	3.77	5.58	5.58
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8BB4

Deuteranopia (green-blind)

#677EB2

Tritanopia (blue-blind)

#00999A

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #218eb2;
/* rgb */ color: rgb(33, 142, 178);
/* oklch */ color: oklch(60.5% 0.107 225.9);

Tailwind

colors: {
  custom: {
    50: '#76afc9',
    500: '#218eb2',
    950: '#000000',
  },
}

SCSS

$custom: #218eb2;
$custom-light: #76afc9;
$custom-dark: #000000;

JSON

{
  "hex": "#218eb2",
  "rgb": {
    "r": 33,
    "g": 142,
    "b": 178
  },
  "hsl": {
    "h": 194.897,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.60451,
    "c": 0.10669,
    "h": 225.9
  },
  "luminance": 0.22884
}

Semantic roles & 50–950 ramp

primary

#218EB2

secondary

#C97E66

accent

#683CEC

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #218EB2

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

Preview Lab → · Contrast checker → · Palette generator →