#218CB2#218CB2

#218CB2 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.0% C 0.107 H 227.6°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#218CB2
RGB	rgb(33, 140, 178)
HSL	hsl(196, 69%, 41%)
HSV	hsv(196, 81%, 70%)
CMYK	cmyk(81.5%, 21.3%, 0%, 30.2%)
CIE-LAB	lab(54.34, -15.84, -28.22)
CIE-LCH	lch(54.34, 32.36, 240.70°)
OKLab	oklab(59.96% -0.0724 -0.0793)
OKLCH	oklch(59.96% 0.107 227.6)
XYZ	xyz(18.0378, 22.2916, 45.4629)
Luminance	0.2229 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218CB2 #B24721

analogous

#21B290 #218CB2 #2144B2

triadic

#218CB2 #B2218C #8CB221

tetradic

#218CB2 #9021B2 #B24721 #44B221

square

#218CB2 #9021B2 #B24721 #44B221

split-complementary

#218CB2 #B22144 #B29021

monochromatic

#0E3B4B #17637E #218CB2 #36AFDA #6AC4E3

Accessibility & contrast

On white

3.85

#218CB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#218CB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218CB2

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218CB2	#FFFFFF	#000000	##000000
##218CB2	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7889B4

Deuteranopia (green-blind)

#657CB2

Tritanopia (blue-blind)

#009799

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #218cb2;
/* rgb */ color: rgb(33, 140, 178);
/* oklch */ color: oklch(60.0% 0.107 227.6);

Tailwind

colors: {
  custom: {
    50: '#75adc9',
    500: '#218cb2',
    950: '#000000',
  },
}

SCSS

$custom: #218cb2;
$custom-light: #75adc9;
$custom-dark: #000000;

JSON

{
  "hex": "#218cb2",
  "rgb": {
    "r": 33,
    "g": 140,
    "b": 178
  },
  "hsl": {
    "h": 195.724,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.59959,
    "c": 0.1074,
    "h": 227.6
  },
  "luminance": 0.22294
}

Semantic roles & 50–950 ramp

primary

#218CB2

secondary

#C98066

accent

#6A3CEC

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #218CB2

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

Preview Lab → · Contrast checker → · Palette generator →