#2170BE#2170BE

#2170BE is a mid, vivid cyan. Relative luminance 0.156; OKLCH L 53.9% C 0.143 H 252.2°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#2170BE
RGB	rgb(33, 112, 190)
HSL	hsl(210, 70%, 44%)
HSV	hsv(210, 83%, 75%)
CMYK	cmyk(82.6%, 41.1%, 0%, 25.5%)
CIE-LAB	lab(46.48, 5.09, -47.49)
CIE-LCH	lch(46.48, 47.76, 276.12°)
OKLab	oklab(53.94% -0.0436 -0.1359)
OKLCH	oklch(53.94% 0.143 252.2)
XYZ	xyz(15.7121, 15.6274, 50.8935)
Luminance	0.1563 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2170BE #BE6F21

analogous

#21BEBD #2170BE #2121BE

triadic

#2170BE #BE2170 #70BE21

tetradic

#2170BE #BD21BE #BE6F21 #21BE21

square

#2170BE #BD21BE #BE6F21 #21BE21

split-complementary

#2170BE #BE2121 #BEBD21

monochromatic

#0F3356 #18518A #2170BE #3F8FDE #73ADE7

Accessibility & contrast

On white

5.09

#2170BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#2170BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2170BE

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2170BE	#FFFFFF	#000000	##FFFFFF
##2170BE	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4976C1

Deuteranopia (green-blind)

#2E68BC

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #2170be;
/* rgb */ color: rgb(33, 112, 190);
/* oklch */ color: oklch(53.9% 0.143 252.2);

Tailwind

colors: {
  custom: {
    50: '#7798d2',
    500: '#2170be',
    950: '#000000',
  },
}

SCSS

$custom: #2170be;
$custom-light: #7798d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2170be",
  "rgb": {
    "r": 33,
    "g": 112,
    "b": 190
  },
  "hsl": {
    "h": 209.809,
    "s": 70.404,
    "l": 43.725
  },
  "oklch": {
    "l": 0.53939,
    "c": 0.14272,
    "h": 252.2
  },
  "luminance": 0.15629
}

Semantic roles & 50–950 ramp

primary

#2170BE

secondary

#CD9D6D

accent

#933BED

background

#F7F9FC

surface

#EEF2F9

border

#C9CCD2

text

#0A0D14

muted

#7C7E82

Preview Lab

Preview with #2170BE

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

Preview Lab → · Contrast checker → · Palette generator →