#217BBC#217BBC

#217BBC is a mid, vivid cyan. Relative luminance 0.181; OKLCH L 56.4% C 0.129 H 245.5°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#217BBC
RGB	rgb(33, 123, 188)
HSL	hsl(205, 70%, 43%)
HSV	hsv(205, 82%, 74%)
CMYK	cmyk(82.4%, 34.6%, 0%, 26.3%)
CIE-LAB	lab(49.64, -2.41, -41.31)
CIE-LCH	lch(49.64, 41.38, 266.66°)
OKLab	oklab(56.38% -0.0535 -0.1176)
OKLCH	oklch(56.38% 0.129 245.5)
XYZ	xyz(16.7837, 18.1180, 50.1797)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#217BBC #BC6221

analogous

#21BCAF #217BBC #212EBC

triadic

#217BBC #BC217B #7BBC21

tetradic

#217BBC #AF21BC #BC6221 #2EBC21

square

#217BBC #AF21BC #BC6221 #2EBC21

split-complementary

#217BBC #BC212E #BCAF21

monochromatic

#0F3754 #185988 #217BBC #3D9ADD #71B5E6

Accessibility & contrast

On white

4.54

#217BBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#217BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #217BBC

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##217BBC	#FFFFFF	#000000	##000000
##217BBC	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7EBF

Deuteranopia (green-blind)

#4670BB

Tritanopia (blue-blind)

#008B93

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #217bbc;
/* rgb */ color: rgb(33, 123, 188);
/* oklch */ color: oklch(56.4% 0.129 245.5);

Tailwind

colors: {
  custom: {
    50: '#76a0d0',
    500: '#217bbc',
    950: '#000000',
  },
}

SCSS

$custom: #217bbc;
$custom-light: #76a0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#217bbc",
  "rgb": {
    "r": 33,
    "g": 123,
    "b": 188
  },
  "hsl": {
    "h": 205.161,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.5638,
    "c": 0.12918,
    "h": 245.5
  },
  "luminance": 0.1812
}

Semantic roles & 50–950 ramp

primary

#217BBC

secondary

#CD956C

accent

#863BED

background

#F7F9FC

surface

#EEF2F9

border

#C9CCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #217BBC

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

Preview Lab → · Contrast checker → · Palette generator →