#217D9B#217D9B

#217D9B is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.1% C 0.094 H 224.9°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#217D9B
RGB	rgb(33, 125, 155)
HSL	hsl(195, 65%, 37%)
HSV	hsv(195, 79%, 61%)
CMYK	cmyk(78.7%, 19.4%, 0%, 39.2%)
CIE-LAB	lab(48.70, -15.63, -23.62)
CIE-LCH	lch(48.70, 28.33, 236.51°)
OKLab	oklab(55.13% -0.0666 -0.0662)
OKLCH	oklch(55.13% 0.094 224.9)
XYZ	xyz(13.8748, 17.3554, 33.6227)
Luminance	0.1736 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#217D9B #9B3F21

analogous

#219B7C #217D9B #21409B

triadic

#217D9B #9B217D #7D9B21

tetradic

#217D9B #7C219B #9B3F21 #409B21

square

#217D9B #7C219B #9B3F21 #409B21

split-complementary

#217D9B #9B2140 #9B7C21

monochromatic

#0C2C36 #165469 #217D9B #2CA6CD #5ABCDC

Accessibility & contrast

On white

4.70

#217D9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#217D9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #217D9B

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##217D9B	#FFFFFF	#000000	##FFFFFF
##217D9B	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7A9D

Deuteranopia (green-blind)

#5C6F9B

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #217d9b;
/* rgb */ color: rgb(33, 125, 155);
/* oklch */ color: oklch(55.1% 0.094 224.9);

Tailwind

colors: {
  custom: {
    50: '#71a2b8',
    500: '#217d9b',
    950: '#000000',
  },
}

SCSS

$custom: #217d9b;
$custom-light: #71a2b8;
$custom-dark: #000000;

JSON

{
  "hex": "#217d9b",
  "rgb": {
    "r": 33,
    "g": 125,
    "b": 155
  },
  "hsl": {
    "h": 194.754,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.55129,
    "c": 0.09393,
    "h": 224.9
  },
  "luminance": 0.17357
}

Semantic roles & 50–950 ramp

primary

#217D9B

secondary

#C07158

accent

#6940E8

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #217D9B

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

Preview Lab → · Contrast checker → · Palette generator →