#218DB2#218DB2

#218DB2 is a mid, moderate cyan. Relative luminance 0.226; OKLCH L 60.2% C 0.107 H 226.8°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#218DB2
RGB	rgb(33, 141, 178)
HSL	hsl(195, 69%, 41%)
HSV	hsv(195, 81%, 70%)
CMYK	cmyk(81.5%, 20.8%, 0%, 30.2%)
CIE-LAB	lab(54.64, -16.38, -27.74)
CIE-LCH	lch(54.64, 32.22, 239.43°)
OKLab	oklab(60.21% -0.0733 -0.078)
OKLCH	oklch(60.21% 0.107 226.8)
XYZ	xyz(18.1846, 22.5852, 45.5118)
Luminance	0.2259 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218DB2 #B24621

analogous

#21B28F #218DB2 #2145B2

triadic

#218DB2 #B2218D #8DB221

tetradic

#218DB2 #8F21B2 #B24621 #45B221

square

#218DB2 #8F21B2 #B24621 #45B221

split-complementary

#218DB2 #B22145 #B28F21

monochromatic

#0E3B4B #17647E #218DB2 #36B0DA #6AC4E3

Accessibility & contrast

On white

3.81

#218DB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#218DB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218DB2

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218DB2	#FFFFFF	#000000	##000000
##218DB2	1.00	3.81	5.52	5.52
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#798AB4

Deuteranopia (green-blind)

#667DB2

Tritanopia (blue-blind)

#009899

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #218db2;
/* rgb */ color: rgb(33, 141, 178);
/* oklch */ color: oklch(60.2% 0.107 226.8);

Tailwind

colors: {
  custom: {
    50: '#76aec9',
    500: '#218db2',
    950: '#000000',
  },
}

SCSS

$custom: #218db2;
$custom-light: #76aec9;
$custom-dark: #000000;

JSON

{
  "hex": "#218db2",
  "rgb": {
    "r": 33,
    "g": 141,
    "b": 178
  },
  "hsl": {
    "h": 195.31,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.60205,
    "c": 0.10703,
    "h": 226.8
  },
  "luminance": 0.22587
}

Semantic roles & 50–950 ramp

primary

#218DB2

secondary

#C97F66

accent

#693CEC

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #218DB2

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

Preview Lab → · Contrast checker → · Palette generator →