#219BB4#219BB4

#219BB4 is a light, moderate cyan. Relative luminance 0.271; OKLCH L 63.8% C 0.106 H 215.7°. Best body text is #000000 at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#219BB4
RGB	rgb(33, 155, 180)
HSL	hsl(190, 69%, 42%)
HSV	hsv(190, 82%, 71%)
CMYK	cmyk(81.7%, 13.9%, 0%, 29.4%)
CIE-LAB	lab(59.03, -23.14, -22.12)
CIE-LCH	lch(59.03, 32.01, 223.71°)
OKLab	oklab(63.76% -0.0859 -0.0618)
OKLCH	oklch(63.76% 0.106 215.7)
XYZ	xyz(20.5832, 27.0587, 47.3092)
Luminance	0.2706 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#219BB4 #B43A21

analogous

#21B484 #219BB4 #2152B4

triadic

#219BB4 #B4219B #9BB421

tetradic

#219BB4 #8421B4 #B43A21 #52B421

square

#219BB4 #8421B4 #B43A21 #52B421

split-complementary

#219BB4 #B42152 #B48421

monochromatic

#0E424D #186E80 #219BB4 #38BFDA #6BCFE4

Accessibility & contrast

On white

3.28

#219BB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.41

#219BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #219BB4

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##219BB4	#FFFFFF	#000000	##000000
##219BB4	1.00	3.28	6.41	6.41
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.41	21.00	1.00	1.00
##000000	6.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A96B5

Deuteranopia (green-blind)

#7788B4

Tritanopia (blue-blind)

#00A4A3

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #219bb4;
/* rgb */ color: rgb(33, 155, 180);
/* oklch */ color: oklch(63.8% 0.106 215.7);

Tailwind

colors: {
  custom: {
    50: '#77b8ca',
    500: '#219bb4',
    950: '#000000',
  },
}

SCSS

$custom: #219bb4;
$custom-light: #77b8ca;
$custom-dark: #000000;

JSON

{
  "hex": "#219bb4",
  "rgb": {
    "r": 33,
    "g": 155,
    "b": 180
  },
  "hsl": {
    "h": 190.204,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.63756,
    "c": 0.10586,
    "h": 215.7
  },
  "luminance": 0.27061
}

Semantic roles & 50–950 ramp

primary

#219BB4

secondary

#CA7867

accent

#5A3CEC

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #219BB4

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

Preview Lab → · Contrast checker → · Palette generator →