#2173A5#2173A5

#2173A5 is a mid, moderate cyan. Relative luminance 0.153; OKLCH L 53.2% C 0.109 H 240.8°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#2173A5
RGB	rgb(33, 115, 165)
HSL	hsl(203, 67%, 39%)
HSV	hsv(203, 80%, 65%)
CMYK	cmyk(80%, 30.3%, 0%, 35.3%)
CIE-LAB	lab(46.04, -6.25, -33.63)
CIE-LCH	lch(46.04, 34.21, 259.48°)
OKLab	oklab(53.16% -0.0532 -0.0953)
OKLCH	oklch(53.16% 0.109 240.8)
XYZ	xyz(13.5468, 15.2998, 37.8292)
Luminance	0.1530 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2173A5 #A55321

analogous

#21A595 #2173A5 #2131A5

triadic

#2173A5 #A52173 #73A521

tetradic

#2173A5 #9521A5 #A55321 #31A521

square

#2173A5 #9521A5 #A55321 #31A521

split-complementary

#2173A5 #A52131 #A59521

monochromatic

#0D2C3F #174F72 #2173A5 #2E96D5 #61B0DF

Accessibility & contrast

On white

5.17

#2173A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#2173A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2173A5

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2173A5	#FFFFFF	#000000	##FFFFFF
##2173A5	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B74A7

Deuteranopia (green-blind)

#4968A4

Tritanopia (blue-blind)

#007F85

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #2173a5;
/* rgb */ color: rgb(33, 115, 165);
/* oklch */ color: oklch(53.2% 0.109 240.8);

Tailwind

colors: {
  custom: {
    50: '#729bc0',
    500: '#2173a5',
    950: '#000000',
  },
}

SCSS

$custom: #2173a5;
$custom-light: #729bc0;
$custom-dark: #000000;

JSON

{
  "hex": "#2173a5",
  "rgb": {
    "r": 33,
    "g": 115,
    "b": 165
  },
  "hsl": {
    "h": 202.727,
    "s": 66.667,
    "l": 38.824
  },
  "oklch": {
    "l": 0.53156,
    "c": 0.10914,
    "h": 240.8
  },
  "luminance": 0.15301
}

Semantic roles & 50–950 ramp

primary

#2173A5

secondary

#C4845E

accent

#7F3EEA

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2173A5

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

Preview Lab → · Contrast checker → · Palette generator →