#217DBC#217DBC

#217DBC is a mid, vivid cyan. Relative luminance 0.186; OKLCH L 56.9% C 0.127 H 244.3°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#217DBC
RGB	rgb(33, 125, 188)
HSL	hsl(204, 70%, 43%)
HSV	hsv(204, 82%, 74%)
CMYK	cmyk(82.4%, 33.5%, 0%, 26.3%)
CIE-LAB	lab(50.24, -3.61, -40.37)
CIE-LCH	lch(50.24, 40.53, 264.89°)
OKLab	oklab(56.85% -0.0552 -0.1148)
OKLCH	oklch(56.85% 0.127 244.3)
XYZ	xyz(17.0344, 18.6193, 50.2633)
Luminance	0.1862 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#217DBC #BC6021

analogous

#21BCAD #217DBC #212FBC

triadic

#217DBC #BC217D #7DBC21

tetradic

#217DBC #AD21BC #BC6021 #2FBC21

square

#217DBC #AD21BC #BC6021 #2FBC21

split-complementary

#217DBC #BC212F #BCAD21

monochromatic

#0F3854 #185A88 #217DBC #3D9CDD #71B7E6

Accessibility & contrast

On white

4.45

#217DBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#217DBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #217DBC

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##217DBC	#FFFFFF	#000000	##000000
##217DBC	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7FBF

Deuteranopia (green-blind)

#4971BB

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #217dbc;
/* rgb */ color: rgb(33, 125, 188);
/* oklch */ color: oklch(56.9% 0.127 244.3);

Tailwind

colors: {
  custom: {
    50: '#77a2d0',
    500: '#217dbc',
    950: '#000000',
  },
}

SCSS

$custom: #217dbc;
$custom-light: #77a2d0;
$custom-dark: #000000;

JSON

{
  "hex": "#217dbc",
  "rgb": {
    "r": 33,
    "g": 125,
    "b": 188
  },
  "hsl": {
    "h": 204.387,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.56854,
    "c": 0.12738,
    "h": 244.3
  },
  "luminance": 0.18621
}

Semantic roles & 50–950 ramp

primary

#217DBC

secondary

#CD936C

accent

#833BED

background

#F7F9FC

surface

#EEF2F9

border

#C9CCD2

text

#0A0F14

muted

#7C7E82

Preview Lab

Preview with #217DBC

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

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