#218399#218399

#218399 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 56.6% C 0.092 H 216.8°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#218399
RGB	rgb(33, 131, 153)
HSL	hsl(191, 65%, 36%)
HSV	hsv(191, 78%, 60%)
CMYK	cmyk(78.4%, 14.4%, 0%, 40%)
CIE-LAB	lab(50.52, -19.60, -19.67)
CIE-LCH	lch(50.52, 27.77, 225.10°)
OKLab	oklab(56.56% -0.0734 -0.0549)
OKLCH	oklch(56.56% 0.092 216.8)
XYZ	xyz(14.4908, 18.8541, 33.0063)
Luminance	0.1886 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218399 #993721

analogous

#219973 #218399 #214799

triadic

#218399 #992183 #839921

tetradic

#218399 #732199 #993721 #479921

square

#218399 #732199 #993721 #479921

split-complementary

#218399 #992147 #997321

monochromatic

#0B2D34 #165867 #218399 #2CAECB #59C3DB

Accessibility & contrast

On white

4.40

#218399 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#218399 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218399

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218399	#FFFFFF	#000000	##000000
##218399	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#747F9A

Deuteranopia (green-blind)

#647399

Tritanopia (blue-blind)

#008B8A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #218399;
/* rgb */ color: rgb(33, 131, 153);
/* oklch */ color: oklch(56.6% 0.092 216.8);

Tailwind

colors: {
  custom: {
    50: '#71a7b7',
    500: '#218399',
    950: '#000000',
  },
}

SCSS

$custom: #218399;
$custom-light: #71a7b7;
$custom-dark: #000000;

JSON

{
  "hex": "#218399",
  "rgb": {
    "r": 33,
    "g": 131,
    "b": 153
  },
  "hsl": {
    "h": 191,
    "s": 64.516,
    "l": 36.471
  },
  "oklch": {
    "l": 0.56557,
    "c": 0.0917,
    "h": 216.8
  },
  "luminance": 0.18856
}

Semantic roles & 50–950 ramp

primary

#218399

secondary

#BF6A56

accent

#5F40E8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #218399

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

Preview Lab → · Contrast checker → · Palette generator →