#2166A0#2166A0

#2166A0 is a mid, moderate cyan. Relative luminance 0.124; OKLCH L 49.7% C 0.115 H 248.2°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#2166A0
RGB	rgb(33, 102, 160)
HSL	hsl(207, 66%, 38%)
HSV	hsv(207, 79%, 63%)
CMYK	cmyk(79.4%, 36.2%, 0%, 37.3%)
CIE-LAB	lab(41.79, -0.21, -37.40)
CIE-LCH	lch(41.79, 37.40, 269.69°)
OKLab	oklab(49.71% -0.0426 -0.1065)
OKLCH	oklch(49.71% 0.115 248.2)
XYZ	xyz(11.7213, 12.3627, 35.0194)
Luminance	0.1236 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2166A0 #A05B21

analogous

#21A09B #2166A0 #2126A0

triadic

#2166A0 #A02166 #66A021

tetradic

#2166A0 #9B21A0 #A05B21 #26A021

square

#2166A0 #9B21A0 #A05B21 #26A021

split-complementary

#2166A0 #A02126 #A09B21

monochromatic

#0C253B #17466D #2166A0 #2B86D3 #5EA3DE

Accessibility & contrast

On white

6.05

#2166A0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#2166A0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2166A0

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2166A0	#FFFFFF	#000000	##FFFFFF
##2166A0	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B69A2

Deuteranopia (green-blind)

#385D9F

Tritanopia (blue-blind)

#00747B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #2166a0;
/* rgb */ color: rgb(33, 102, 160);
/* oklch */ color: oklch(49.7% 0.115 248.2);

Tailwind

colors: {
  custom: {
    50: '#7091bc',
    500: '#2166a0',
    950: '#000000',
  },
}

SCSS

$custom: #2166a0;
$custom-light: #7091bc;
$custom-dark: #000000;

JSON

{
  "hex": "#2166a0",
  "rgb": {
    "r": 33,
    "g": 102,
    "b": 160
  },
  "hsl": {
    "h": 207.402,
    "s": 65.803,
    "l": 37.843
  },
  "oklch": {
    "l": 0.49712,
    "c": 0.11467,
    "h": 248.2
  },
  "luminance": 0.12364
}

Semantic roles & 50–950 ramp

primary

#2166A0

secondary

#C28A5B

accent

#8D3FE9

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #2166A0

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

Preview Lab → · Contrast checker → · Palette generator →