#166BA1#166BA1

#166BA1 is a mid, moderate cyan. Relative luminance 0.133; OKLCH L 50.7% C 0.114 H 243.2°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#166BA1
RGB	rgb(22, 107, 161)
HSL	hsl(203, 76%, 36%)
HSV	hsv(203, 86%, 63%)
CMYK	cmyk(86.3%, 33.5%, 0%, 36.9%)
CIE-LAB	lab(43.15, -3.99, -35.85)
CIE-LCH	lch(43.15, 36.07, 263.66°)
OKLab	oklab(50.74% -0.0516 -0.1019)
OKLCH	oklch(50.74% 0.114 243.2)
XYZ	xyz(12.0191, 13.2576, 35.6368)
Luminance	0.1326 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166BA1 #A14C16

analogous

#16A191 #166BA1 #1626A1

triadic

#166BA1 #A1166B #6BA116

tetradic

#166BA1 #9116A1 #A14C16 #26A116

square

#166BA1 #9116A1 #A14C16 #26A116

split-complementary

#166BA1 #A11626 #A19116

monochromatic

#072335 #0F476B #166BA1 #1D8FD7 #4BAAE6

Accessibility & contrast

On white

5.75

#166BA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#166BA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166BA1

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166BA1	#FFFFFF	#000000	##FFFFFF
##166BA1	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#516DA3

Deuteranopia (green-blind)

#3E60A0

Tritanopia (blue-blind)

#00787E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #166ba1;
/* rgb */ color: rgb(22, 107, 161);
/* oklch */ color: oklch(50.7% 0.114 243.2);

Tailwind

colors: {
  custom: {
    50: '#6e95bd',
    500: '#166ba1',
    950: '#000000',
  },
}

SCSS

$custom: #166ba1;
$custom-light: #6e95bd;
$custom-dark: #000000;

JSON

{
  "hex": "#166ba1",
  "rgb": {
    "r": 22,
    "g": 107,
    "b": 161
  },
  "hsl": {
    "h": 203.309,
    "s": 75.956,
    "l": 35.882
  },
  "oklch": {
    "l": 0.50737,
    "c": 0.11425,
    "h": 243.2
  },
  "luminance": 0.13259
}

Semantic roles & 50–950 ramp

primary

#166BA1

secondary

#C87B4B

accent

#7F35F3

background

#F7F9FB

surface

#EDF1F6

border

#C8CBD0

text

#080D12

muted

#7B7E81

Preview Lab

Preview with #166BA1

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

Preview Lab → · Contrast checker → · Palette generator →