#2171AD#2171AD

#2171AD is a mid, vivid cyan. Relative luminance 0.152; OKLCH L 53.1% C 0.120 H 246.0°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#2171AD
RGB	rgb(33, 113, 173)
HSL	hsl(206, 68%, 40%)
HSV	hsv(206, 81%, 68%)
CMYK	cmyk(80.9%, 34.7%, 0%, 32.2%)
CIE-LAB	lab(45.84, -2.03, -38.64)
CIE-LCH	lch(45.84, 38.69, 266.99°)
OKLab	oklab(53.13% -0.0489 -0.1099)
OKLCH	oklch(53.13% 0.12 246)
XYZ	xyz(14.0722, 15.1490, 41.7094)
Luminance	0.1515 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2171AD #AD5D21

analogous

#21ADA3 #2171AD #212BAD

triadic

#2171AD #AD2171 #71AD21

tetradic

#2171AD #A321AD #AD5D21 #2BAD21

square

#2171AD #A321AD #AD5D21 #2BAD21

split-complementary

#2171AD #AD212B #ADA321

monochromatic

#0D2E46 #174F7A #2171AD #3391D8 #66ADE2

Accessibility & contrast

On white

5.21

#2171AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#2171AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2171AD

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2171AD	#FFFFFF	#000000	##FFFFFF
##2171AD	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5574B0

Deuteranopia (green-blind)

#4167AC

Tritanopia (blue-blind)

#008087

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #2171ad;
/* rgb */ color: rgb(33, 113, 173);
/* oklch */ color: oklch(53.1% 0.120 246.0);

Tailwind

colors: {
  custom: {
    50: '#7399c6',
    500: '#2171ad',
    950: '#000000',
  },
}

SCSS

$custom: #2171ad;
$custom-light: #7399c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2171ad",
  "rgb": {
    "r": 33,
    "g": 113,
    "b": 173
  },
  "hsl": {
    "h": 205.714,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.53127,
    "c": 0.12031,
    "h": 246
  },
  "luminance": 0.15151
}

Semantic roles & 50–950 ramp

primary

#2171AD

secondary

#C78E62

accent

#873DEB

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#090D13

muted

#7B7E82

Preview Lab

Preview with #2171AD

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

Preview Lab → · Contrast checker → · Palette generator →