#2166A9#2166A9

#2166A9 is a mid, vivid cyan. Relative luminance 0.127; OKLCH L 50.3% C 0.126 H 251.4°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#2166A9
RGB	rgb(33, 102, 169)
HSL	hsl(210, 67%, 40%)
HSV	hsv(210, 80%, 66%)
CMYK	cmyk(80.5%, 39.6%, 0%, 33.7%)
CIE-LAB	lab(42.29, 3.27, -41.92)
CIE-LCH	lch(42.29, 42.05, 274.46°)
OKLab	oklab(50.27% -0.0402 -0.1197)
OKLCH	oklch(50.27% 0.126 251.4)
XYZ	xyz(12.5373, 12.6891, 39.3169)
Luminance	0.1269 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2166A9 #A96421

analogous

#21A9A8 #2166A9 #2122A9

triadic

#2166A9 #A92166 #66A921

tetradic

#2166A9 #A821A9 #A96421 #22A921

square

#2166A9 #A821A9 #A96421 #22A921

split-complementary

#2166A9 #A92122 #A9A821

monochromatic

#0D2843 #174776 #2166A9 #3185D7 #64A3E1

Accessibility & contrast

On white

5.94

#2166A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#2166A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2166A9

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2166A9	#FFFFFF	#000000	##FFFFFF
##2166A9	1.00	5.94	3.54	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#466BAC

Deuteranopia (green-blind)

#305EA8

Tritanopia (blue-blind)

#00767F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2166a9;
/* rgb */ color: rgb(33, 102, 169);
/* oklch */ color: oklch(50.3% 0.126 251.4);

Tailwind

colors: {
  custom: {
    50: '#7291c3',
    500: '#2166a9',
    950: '#000000',
  },
}

SCSS

$custom: #2166a9;
$custom-light: #7291c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2166a9",
  "rgb": {
    "r": 33,
    "g": 102,
    "b": 169
  },
  "hsl": {
    "h": 209.559,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.50272,
    "c": 0.1263,
    "h": 251.4
  },
  "luminance": 0.12691
}

Semantic roles & 50–950 ramp

primary

#2166A9

secondary

#C69260

accent

#933EEA

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #2166A9

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

Preview Lab → · Contrast checker → · Palette generator →