#218FB2#218FB2

#218FB2 is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 60.7% C 0.106 H 225.0°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#218FB2
RGB	rgb(33, 143, 178)
HSL	hsl(194, 69%, 41%)
HSV	hsv(194, 81%, 70%)
CMYK	cmyk(81.5%, 19.7%, 0%, 30.2%)
CIE-LAB	lab(55.26, -17.47, -26.79)
CIE-LCH	lch(55.26, 31.98, 236.89°)
OKLab	oklab(60.7% -0.0752 -0.0752)
OKLCH	oklch(60.7% 0.106 225)
XYZ	xyz(18.4822, 23.1803, 45.6110)
Luminance	0.2318 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218FB2 #B24421

analogous

#21B28D #218FB2 #2147B2

triadic

#218FB2 #B2218F #8FB221

tetradic

#218FB2 #8D21B2 #B24421 #47B221

square

#218FB2 #8D21B2 #B24421 #47B221

split-complementary

#218FB2 #B22147 #B28D21

monochromatic

#0E3C4B #17667E #218FB2 #36B2DA #6AC6E3

Accessibility & contrast

On white

3.73

#218FB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.64

#218FB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218FB2

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218FB2	#FFFFFF	#000000	##000000
##218FB2	1.00	3.73	5.64	5.64
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.64	21.00	1.00	1.00
##000000	5.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8CB4

Deuteranopia (green-blind)

#697EB2

Tritanopia (blue-blind)

#00999A

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #218fb2;
/* rgb */ color: rgb(33, 143, 178);
/* oklch */ color: oklch(60.7% 0.106 225.0);

Tailwind

colors: {
  custom: {
    50: '#76b0c9',
    500: '#218fb2',
    950: '#000000',
  },
}

SCSS

$custom: #218fb2;
$custom-light: #76b0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#218fb2",
  "rgb": {
    "r": 33,
    "g": 143,
    "b": 178
  },
  "hsl": {
    "h": 194.483,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.60698,
    "c": 0.10638,
    "h": 225
  },
  "luminance": 0.23183
}

Semantic roles & 50–950 ramp

primary

#218FB2

secondary

#C97E66

accent

#673CEC

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #218FB2

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

Preview Lab → · Contrast checker → · Palette generator →