#218CB4#218CB4

#218CB4 is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.1% C 0.109 H 228.9°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#218CB4
RGB	rgb(33, 140, 180)
HSL	hsl(196, 69%, 42%)
HSV	hsv(196, 82%, 71%)
CMYK	cmyk(81.7%, 22.2%, 0%, 29.4%)
CIE-LAB	lab(54.42, -15.13, -29.23)
CIE-LCH	lch(54.42, 32.91, 242.63°)
OKLab	oklab(60.06% -0.0716 -0.0822)
OKLCH	oklch(60.06% 0.109 228.9)
XYZ	xyz(18.2401, 22.3725, 46.5281)
Luminance	0.2238 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218CB4 #B44921

analogous

#21B493 #218CB4 #2142B4

triadic

#218CB4 #B4218C #8CB421

tetradic

#218CB4 #9321B4 #B44921 #42B421

square

#218CB4 #9321B4 #B44921 #42B421

split-complementary

#218CB4 #B42142 #B49321

monochromatic

#0E3C4D #186480 #218CB4 #38AEDA #6BC3E4

Accessibility & contrast

On white

3.84

#218CB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#218CB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218CB4

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218CB4	#FFFFFF	#000000	##000000
##218CB4	1.00	3.84	5.48	5.48
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778AB6

Deuteranopia (green-blind)

#647CB3

Tritanopia (blue-blind)

#009799

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #218cb4;
/* rgb */ color: rgb(33, 140, 180);
/* oklch */ color: oklch(60.1% 0.109 228.9);

Tailwind

colors: {
  custom: {
    50: '#76adca',
    500: '#218cb4',
    950: '#000000',
  },
}

SCSS

$custom: #218cb4;
$custom-light: #76adca;
$custom-dark: #000000;

JSON

{
  "hex": "#218cb4",
  "rgb": {
    "r": 33,
    "g": 140,
    "b": 180
  },
  "hsl": {
    "h": 196.327,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.60055,
    "c": 0.10907,
    "h": 228.9
  },
  "luminance": 0.22375
}

Semantic roles & 50–950 ramp

primary

#218CB4

secondary

#CA8267

accent

#6C3CEC

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #218CB4

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

Preview Lab → · Contrast checker → · Palette generator →