#218EB4#218EB4

#218EB4 is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.5% C 0.108 H 227.2°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#218EB4
RGB	rgb(33, 142, 180)
HSL	hsl(196, 69%, 42%)
HSV	hsv(196, 82%, 71%)
CMYK	cmyk(81.7%, 21.1%, 0%, 29.4%)
CIE-LAB	lab(55.03, -16.23, -28.28)
CIE-LCH	lch(55.03, 32.60, 240.15°)
OKLab	oklab(60.55% -0.0735 -0.0795)
OKLCH	oklch(60.55% 0.108 227.2)
XYZ	xyz(18.5350, 22.9623, 46.6264)
Luminance	0.2296 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218EB4 #B44721

analogous

#21B491 #218EB4 #2145B4

triadic

#218EB4 #B4218E #8EB421

tetradic

#218EB4 #9121B4 #B44721 #45B421

square

#218EB4 #9121B4 #B44721 #45B421

split-complementary

#218EB4 #B42145 #B49121

monochromatic

#0E3C4D #186580 #218EB4 #38B0DA #6BC5E4

Accessibility & contrast

On white

3.75

#218EB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#218EB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218EB4

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218EB4	#FFFFFF	#000000	##000000
##218EB4	1.00	3.75	5.59	5.59
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8BB6

Deuteranopia (green-blind)

#677EB4

Tritanopia (blue-blind)

#00999B

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #218eb4;
/* rgb */ color: rgb(33, 142, 180);
/* oklch */ color: oklch(60.5% 0.108 227.2);

Tailwind

colors: {
  custom: {
    50: '#76afca',
    500: '#218eb4',
    950: '#000000',
  },
}

SCSS

$custom: #218eb4;
$custom-light: #76afca;
$custom-dark: #000000;

JSON

{
  "hex": "#218eb4",
  "rgb": {
    "r": 33,
    "g": 142,
    "b": 180
  },
  "hsl": {
    "h": 195.51,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.60546,
    "c": 0.10829,
    "h": 227.2
  },
  "luminance": 0.22965
}

Semantic roles & 50–950 ramp

primary

#218EB4

secondary

#CA8067

accent

#693CEC

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #218EB4

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

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