#217B9D#217B9D

#217B9D is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 54.7% C 0.096 H 228.5°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#217B9D
RGB	rgb(33, 123, 157)
HSL	hsl(196, 65%, 37%)
HSV	hsv(196, 79%, 62%)
CMYK	cmyk(79%, 21.7%, 0%, 38.4%)
CIE-LAB	lab(48.16, -13.80, -25.63)
CIE-LCH	lch(48.16, 29.11, 241.70°)
OKLab	oklab(54.72% -0.0638 -0.072)
OKLCH	oklch(54.72% 0.096 228.5)
XYZ	xyz(13.7935, 16.9219, 34.4310)
Luminance	0.1692 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#217B9D #9D4321

analogous

#219D81 #217B9D #213D9D

triadic

#217B9D #9D217B #7B9D21

tetradic

#217B9D #81219D #9D4321 #3D9D21

square

#217B9D #81219D #9D4321 #3D9D21

split-complementary

#217B9D #9D213D #9D8121

monochromatic

#0C2C38 #16536A #217B9D #2CA3D0 #5CB9DD

Accessibility & contrast

On white

4.79

#217B9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#217B9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #217B9D

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##217B9D	#FFFFFF	#000000	##FFFFFF
##217B9D	1.00	4.79	4.38	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#69799F

Deuteranopia (green-blind)

#596D9D

Tritanopia (blue-blind)

#008586

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #217b9d;
/* rgb */ color: rgb(33, 123, 157);
/* oklch */ color: oklch(54.7% 0.096 228.5);

Tailwind

colors: {
  custom: {
    50: '#71a1ba',
    500: '#217b9d',
    950: '#000000',
  },
}

SCSS

$custom: #217b9d;
$custom-light: #71a1ba;
$custom-dark: #000000;

JSON

{
  "hex": "#217b9d",
  "rgb": {
    "r": 33,
    "g": 123,
    "b": 157
  },
  "hsl": {
    "h": 196.452,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.54722,
    "c": 0.09624,
    "h": 228.5
  },
  "luminance": 0.16924
}

Semantic roles & 50–950 ramp

primary

#217B9D

secondary

#C17559

accent

#6E40E8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F11

muted

#7B7E80

Preview Lab

Preview with #217B9D

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

Preview Lab → · Contrast checker → · Palette generator →