#2173A9#2173A9

#2173A9 is a mid, moderate cyan. Relative luminance 0.154; OKLCH L 53.4% C 0.114 H 242.8°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#2173A9
RGB	rgb(33, 115, 169)
HSL	hsl(204, 67%, 40%)
HSV	hsv(204, 80%, 66%)
CMYK	cmyk(80.5%, 32%, 0%, 33.7%)
CIE-LAB	lab(46.24, -4.75, -35.66)
CIE-LCH	lch(46.24, 35.97, 262.41°)
OKLab	oklab(53.38% -0.0519 -0.1012)
OKLCH	oklch(53.38% 0.114 242.8)
XYZ	xyz(13.9166, 15.4477, 39.7767)
Luminance	0.1545 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2173A9 #A95721

analogous

#21A99B #2173A9 #212FA9

triadic

#2173A9 #A92173 #73A921

tetradic

#2173A9 #9B21A9 #A95721 #2FA921

square

#2173A9 #9B21A9 #A95721 #2FA921

split-complementary

#2173A9 #A9212F #A99B21

monochromatic

#0D2D43 #175076 #2173A9 #3195D7 #64AFE1

Accessibility & contrast

On white

5.13

#2173A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#2173A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2173A9

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2173A9	#FFFFFF	#000000	##FFFFFF
##2173A9	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A74AB

Deuteranopia (green-blind)

#4768A8

Tritanopia (blue-blind)

#008086

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #2173a9;
/* rgb */ color: rgb(33, 115, 169);
/* oklch */ color: oklch(53.4% 0.114 242.8);

Tailwind

colors: {
  custom: {
    50: '#729bc3',
    500: '#2173a9',
    950: '#000000',
  },
}

SCSS

$custom: #2173a9;
$custom-light: #729bc3;
$custom-dark: #000000;

JSON

{
  "hex": "#2173a9",
  "rgb": {
    "r": 33,
    "g": 115,
    "b": 169
  },
  "hsl": {
    "h": 203.824,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.53379,
    "c": 0.11375,
    "h": 242.8
  },
  "luminance": 0.15449
}

Semantic roles & 50–950 ramp

primary

#2173A9

secondary

#C68860

accent

#823EEA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2173A9

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

Preview Lab → · Contrast checker → · Palette generator →