#2166A6#2166A6

#2166A6 is a mid, vivid cyan. Relative luminance 0.126; OKLCH L 50.1% C 0.122 H 250.5°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#2166A6
RGB	rgb(33, 102, 166)
HSL	hsl(209, 67%, 39%)
HSV	hsv(209, 80%, 65%)
CMYK	cmyk(80.1%, 38.6%, 0%, 34.9%)
CIE-LAB	lab(42.12, 2.11, -40.42)
CIE-LCH	lch(42.12, 40.47, 272.98°)
OKLab	oklab(50.08% -0.0409 -0.1153)
OKLCH	oklch(50.08% 0.122 250.5)
XYZ	xyz(12.2589, 12.5778, 37.8507)
Luminance	0.1258 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2166A6 #A66121

analogous

#21A6A4 #2166A6 #2124A6

triadic

#2166A6 #A62166 #66A621

tetradic

#2166A6 #A421A6 #A66121 #24A621

square

#2166A6 #A421A6 #A66121 #24A621

split-complementary

#2166A6 #A62124 #A6A421

monochromatic

#0D2740 #174773 #2166A6 #2F85D6 #62A3E0

Accessibility & contrast

On white

5.97

#2166A6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#2166A6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2166A6

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2166A6	#FFFFFF	#000000	##FFFFFF
##2166A6	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#486AA9

Deuteranopia (green-blind)

#335EA5

Tritanopia (blue-blind)

#00757E

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #2166a6;
/* rgb */ color: rgb(33, 102, 166);
/* oklch */ color: oklch(50.1% 0.122 250.5);

Tailwind

colors: {
  custom: {
    50: '#7291c1',
    500: '#2166a6',
    950: '#000000',
  },
}

SCSS

$custom: #2166a6;
$custom-light: #7291c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2166a6",
  "rgb": {
    "r": 33,
    "g": 102,
    "b": 166
  },
  "hsl": {
    "h": 208.872,
    "s": 66.834,
    "l": 39.02
  },
  "oklch": {
    "l": 0.50082,
    "c": 0.12238,
    "h": 250.5
  },
  "luminance": 0.12579
}

Semantic roles & 50–950 ramp

primary

#2166A6

secondary

#C58F5E

accent

#913EEA

background

#F7F8FB

surface

#EDF0F7

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #2166A6

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

Preview Lab → · Contrast checker → · Palette generator →