#217B9F#217B9F

#217B9F is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 54.8% C 0.098 H 230.0°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#217B9F
RGB	rgb(33, 123, 159)
HSL	hsl(197, 66%, 38%)
HSV	hsv(197, 79%, 62%)
CMYK	cmyk(79.2%, 22.6%, 0%, 37.6%)
CIE-LAB	lab(48.25, -13.09, -26.67)
CIE-LCH	lch(48.25, 29.71, 243.86°)
OKLab	oklab(54.82% -0.0631 -0.075)
OKLCH	oklch(54.82% 0.098 230)
XYZ	xyz(13.9656, 16.9908, 35.3377)
Luminance	0.1699 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#217B9F #9F4521

analogous

#219F84 #217B9F #213C9F

triadic

#217B9F #9F217B #7B9F21

tetradic

#217B9F #84219F #9F4521 #3C9F21

square

#217B9F #84219F #9F4521 #3C9F21

split-complementary

#217B9F #9F213C #9F8421

monochromatic

#0C2D3A #16546C #217B9F #2CA2D2 #5DB9DD

Accessibility & contrast

On white

4.77

#217B9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#217B9F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #217B9F

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##217B9F	#FFFFFF	#000000	##FFFFFF
##217B9F	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6879A1

Deuteranopia (green-blind)

#586D9E

Tritanopia (blue-blind)

#008587

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #217b9f;
/* rgb */ color: rgb(33, 123, 159);
/* oklch */ color: oklch(54.8% 0.098 230.0);

Tailwind

colors: {
  custom: {
    50: '#71a1bb',
    500: '#217b9f',
    950: '#000000',
  },
}

SCSS

$custom: #217b9f;
$custom-light: #71a1bb;
$custom-dark: #000000;

JSON

{
  "hex": "#217b9f",
  "rgb": {
    "r": 33,
    "g": 123,
    "b": 159
  },
  "hsl": {
    "h": 197.143,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.5482,
    "c": 0.09801,
    "h": 230
  },
  "luminance": 0.16992
}

Semantic roles & 50–950 ramp

primary

#217B9F

secondary

#C2785A

accent

#703FE9

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #217B9F

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

Preview Lab → · Contrast checker → · Palette generator →