#2173A0#2173A0

#2173A0 is a mid, moderate cyan. Relative luminance 0.151; OKLCH L 52.9% C 0.104 H 238.0°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#2173A0
RGB	rgb(33, 115, 160)
HSL	hsl(201, 66%, 38%)
HSV	hsv(201, 79%, 63%)
CMYK	cmyk(79.4%, 28.1%, 0%, 37.3%)
CIE-LAB	lab(45.80, -8.10, -31.07)
CIE-LCH	lch(45.80, 32.11, 255.39°)
OKLab	oklab(52.88% -0.0549 -0.0878)
OKLCH	oklch(52.88% 0.104 238)
XYZ	xyz(13.1006, 15.1213, 35.4791)
Luminance	0.1512 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2173A0 #A04E21

analogous

#21A08D #2173A0 #2133A0

triadic

#2173A0 #A02173 #73A021

tetradic

#2173A0 #8D21A0 #A04E21 #33A021

square

#2173A0 #8D21A0 #A04E21 #33A021

split-complementary

#2173A0 #A02133 #A08D21

monochromatic

#0C2A3B #174F6D #2173A0 #2B97D3 #5EB0DE

Accessibility & contrast

On white

5.22

#2173A0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#2173A0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2173A0

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2173A0	#FFFFFF	#000000	##FFFFFF
##2173A0	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E73A2

Deuteranopia (green-blind)

#4C679F

Tritanopia (blue-blind)

#007E83

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #2173a0;
/* rgb */ color: rgb(33, 115, 160);
/* oklch */ color: oklch(52.9% 0.104 238.0);

Tailwind

colors: {
  custom: {
    50: '#719bbc',
    500: '#2173a0',
    950: '#000000',
  },
}

SCSS

$custom: #2173a0;
$custom-light: #719bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#2173a0",
  "rgb": {
    "r": 33,
    "g": 115,
    "b": 160
  },
  "hsl": {
    "h": 201.26,
    "s": 65.803,
    "l": 37.843
  },
  "oklch": {
    "l": 0.52884,
    "c": 0.10359,
    "h": 238
  },
  "luminance": 0.15123
}

Semantic roles & 50–950 ramp

primary

#2173A0

secondary

#C27F5B

accent

#7B3FE9

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2173A0

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

Preview Lab → · Contrast checker → · Palette generator →