#2170AD#2170AD

#2170AD is a mid, vivid cyan. Relative luminance 0.149; OKLCH L 52.9% C 0.121 H 246.7°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#2170AD
RGB	rgb(33, 112, 173)
HSL	hsl(206, 68%, 40%)
HSV	hsv(206, 81%, 68%)
CMYK	cmyk(80.9%, 35.3%, 0%, 32.2%)
CIE-LAB	lab(45.53, -1.42, -39.12)
CIE-LCH	lch(45.53, 39.14, 267.92°)
OKLab	oklab(52.89% -0.048 -0.1113)
OKLCH	oklch(52.89% 0.121 246.7)
XYZ	xyz(13.9613, 14.9271, 41.6725)
Luminance	0.1493 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2170AD #AD5E21

analogous

#21ADA4 #2170AD #212AAD

triadic

#2170AD #AD2170 #70AD21

tetradic

#2170AD #A421AD #AD5E21 #2AAD21

square

#2170AD #A421AD #AD5E21 #2AAD21

split-complementary

#2170AD #AD212A #ADA421

monochromatic

#0D2D46 #174F7A #2170AD #3390D8 #66ACE2

Accessibility & contrast

On white

5.27

#2170AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#2170AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2170AD

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2170AD	#FFFFFF	#000000	##FFFFFF
##2170AD	1.00	5.27	3.99	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5373B0

Deuteranopia (green-blind)

#3F66AC

Tritanopia (blue-blind)

#007F86

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #2170ad;
/* rgb */ color: rgb(33, 112, 173);
/* oklch */ color: oklch(52.9% 0.121 246.7);

Tailwind

colors: {
  custom: {
    50: '#7398c6',
    500: '#2170ad',
    950: '#000000',
  },
}

SCSS

$custom: #2170ad;
$custom-light: #7398c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2170ad",
  "rgb": {
    "r": 33,
    "g": 112,
    "b": 173
  },
  "hsl": {
    "h": 206.143,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.52889,
    "c": 0.12125,
    "h": 246.7
  },
  "luminance": 0.14929
}

Semantic roles & 50–950 ramp

primary

#2170AD

secondary

#C78E62

accent

#893DEB

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#090D13

muted

#7B7E82

Preview Lab

Preview with #2170AD

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

Preview Lab → · Contrast checker → · Palette generator →