#217FBC#217FBC

#217FBC is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.3% C 0.126 H 243.0°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#217FBC
RGB	rgb(33, 127, 188)
HSL	hsl(204, 70%, 43%)
HSV	hsv(204, 82%, 74%)
CMYK	cmyk(82.4%, 32.4%, 0%, 26.3%)
CIE-LAB	lab(50.84, -4.80, -39.42)
CIE-LCH	lch(50.84, 39.71, 263.06°)
OKLab	oklab(57.33% -0.057 -0.112)
OKLCH	oklch(57.33% 0.126 243)
XYZ	xyz(17.2901, 19.1308, 50.3485)
Luminance	0.1913 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#217FBC #BC5E21

analogous

#21BCAB #217FBC #2131BC

triadic

#217FBC #BC217F #7FBC21

tetradic

#217FBC #AB21BC #BC5E21 #31BC21

square

#217FBC #AB21BC #BC5E21 #31BC21

split-complementary

#217FBC #BC2131 #BCAB21

monochromatic

#0F3954 #185C88 #217FBC #3D9EDD #71B8E6

Accessibility & contrast

On white

4.35

#217FBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#217FBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #217FBC

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##217FBC	#FFFFFF	#000000	##000000
##217FBC	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6281BF

Deuteranopia (green-blind)

#4D73BB

Tritanopia (blue-blind)

#008E95

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #217fbc;
/* rgb */ color: rgb(33, 127, 188);
/* oklch */ color: oklch(57.3% 0.126 243.0);

Tailwind

colors: {
  custom: {
    50: '#77a3d0',
    500: '#217fbc',
    950: '#000000',
  },
}

SCSS

$custom: #217fbc;
$custom-light: #77a3d0;
$custom-dark: #000000;

JSON

{
  "hex": "#217fbc",
  "rgb": {
    "r": 33,
    "g": 127,
    "b": 188
  },
  "hsl": {
    "h": 203.613,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.57328,
    "c": 0.12566,
    "h": 243
  },
  "luminance": 0.19133
}

Semantic roles & 50–950 ramp

primary

#217FBC

secondary

#CD926C

accent

#813BED

background

#F7FAFC

surface

#EEF3F9

border

#C9CDD2

text

#0A0F14

muted

#7C7F82

Preview Lab

Preview with #217FBC

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

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