#218BA4#218BA4

#218BA4 is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.1% C 0.098 H 218.1°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#218BA4
RGB	rgb(33, 139, 164)
HSL	hsl(191, 66%, 39%)
HSV	hsv(191, 80%, 64%)
CMYK	cmyk(79.9%, 15.2%, 0%, 35.7%)
CIE-LAB	lab(53.46, -20.13, -21.53)
CIE-LCH	lch(53.46, 29.48, 226.92°)
OKLab	oklab(59.07% -0.0769 -0.0602)
OKLCH	oklch(59.07% 0.098 218.1)
XYZ	xyz(16.5578, 21.4669, 38.3856)
Luminance	0.2147 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218BA4 #A43A21

analogous

#21A47B #218BA4 #214AA4

triadic

#218BA4 #A4218B #8BA421

tetradic

#218BA4 #7B21A4 #A43A21 #4AA421

square

#218BA4 #7B21A4 #A43A21 #4AA421

split-complementary

#218BA4 #A4214A #A47B21

monochromatic

#0C353E #176071 #218BA4 #2DB5D5 #60C7DF

Accessibility & contrast

On white

3.97

#218BA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#218BA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218BA4

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218BA4	#FFFFFF	#000000	##000000
##218BA4	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B87A5

Deuteranopia (green-blind)

#6A7AA4

Tritanopia (blue-blind)

#009393

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #218ba4;
/* rgb */ color: rgb(33, 139, 164);
/* oklch */ color: oklch(59.1% 0.098 218.1);

Tailwind

colors: {
  custom: {
    50: '#73adbf',
    500: '#218ba4',
    950: '#000000',
  },
}

SCSS

$custom: #218ba4;
$custom-light: #73adbf;
$custom-dark: #000000;

JSON

{
  "hex": "#218ba4",
  "rgb": {
    "r": 33,
    "g": 139,
    "b": 164
  },
  "hsl": {
    "h": 191.45,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.59066,
    "c": 0.09765,
    "h": 218.1
  },
  "luminance": 0.21469
}

Semantic roles & 50–950 ramp

primary

#218BA4

secondary

#C4715D

accent

#5F3EE9

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #218BA4

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

Preview Lab → · Contrast checker → · Palette generator →