#218FAE#218FAE

#218FAE is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.5% C 0.103 H 222.1°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#218FAE
RGB	rgb(33, 143, 174)
HSL	hsl(193, 68%, 41%)
HSV	hsv(193, 81%, 68%)
CMYK	cmyk(81%, 17.8%, 0%, 31.8%)
CIE-LAB	lab(55.09, -18.85, -24.75)
CIE-LCH	lch(55.09, 31.12, 232.71°)
OKLab	oklab(60.51% -0.0768 -0.0694)
OKLCH	oklch(60.51% 0.103 222.1)
XYZ	xyz(18.0864, 23.0220, 43.5266)
Luminance	0.2302 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218FAE #AE4021

analogous

#21AE86 #218FAE #2149AE

triadic

#218FAE #AE218F #8FAE21

tetradic

#218FAE #8621AE #AE4021 #49AE21

square

#218FAE #8621AE #AE4021 #49AE21

split-complementary

#218FAE #AE2149 #AE8621

monochromatic

#0D3A47 #17657B #218FAE #34B4D8 #67C7E2

Accessibility & contrast

On white

3.75

#218FAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#218FAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218FAE

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218FAE	#FFFFFF	#000000	##000000
##218FAE	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8BB0

Deuteranopia (green-blind)

#6A7EAE

Tritanopia (blue-blind)

#009999

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #218fae;
/* rgb */ color: rgb(33, 143, 174);
/* oklch */ color: oklch(60.5% 0.103 222.1);

Tailwind

colors: {
  custom: {
    50: '#75b0c6',
    500: '#218fae',
    950: '#000000',
  },
}

SCSS

$custom: #218fae;
$custom-light: #75b0c6;
$custom-dark: #000000;

JSON

{
  "hex": "#218fae",
  "rgb": {
    "r": 33,
    "g": 143,
    "b": 174
  },
  "hsl": {
    "h": 193.191,
    "s": 68.116,
    "l": 40.588
  },
  "oklch": {
    "l": 0.60514,
    "c": 0.10348,
    "h": 222.1
  },
  "luminance": 0.23024
}

Semantic roles & 50–950 ramp

primary

#218FAE

secondary

#C87963

accent

#633DEB

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #218FAE

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

Preview Lab → · Contrast checker → · Palette generator →