#2187A4#2187A4

#2187A4 is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.1% C 0.098 H 222.0°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#2187A4
RGB	rgb(33, 135, 164)
HSL	hsl(193, 66%, 39%)
HSV	hsv(193, 80%, 64%)
CMYK	cmyk(79.9%, 17.7%, 0%, 35.7%)
CIE-LAB	lab(52.21, -17.98, -23.45)
CIE-LCH	lch(52.21, 29.55, 232.52°)
OKLab	oklab(58.06% -0.0729 -0.0657)
OKLCH	oklch(58.06% 0.098 222)
XYZ	xyz(15.9892, 20.3296, 38.1961)
Luminance	0.2033 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2187A4 #A43E21

analogous

#21A47F #2187A4 #2146A4

triadic

#2187A4 #A42187 #87A421

tetradic

#2187A4 #7F21A4 #A43E21 #46A421

square

#2187A4 #7F21A4 #A43E21 #46A421

split-complementary

#2187A4 #A42146 #A47F21

monochromatic

#0C333E #175D71 #2187A4 #2DB0D5 #60C3DF

Accessibility & contrast

On white

4.14

#2187A4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#2187A4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2187A4

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2187A4	#FFFFFF	#000000	##000000
##2187A4	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7684A6

Deuteranopia (green-blind)

#6577A4

Tritanopia (blue-blind)

#009090

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #2187a4;
/* rgb */ color: rgb(33, 135, 164);
/* oklch */ color: oklch(58.1% 0.098 222.0);

Tailwind

colors: {
  custom: {
    50: '#73aabf',
    500: '#2187a4',
    950: '#000000',
  },
}

SCSS

$custom: #2187a4;
$custom-light: #73aabf;
$custom-dark: #000000;

JSON

{
  "hex": "#2187a4",
  "rgb": {
    "r": 33,
    "g": 135,
    "b": 164
  },
  "hsl": {
    "h": 193.282,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.58062,
    "c": 0.09817,
    "h": 222
  },
  "luminance": 0.20332
}

Semantic roles & 50–950 ramp

primary

#2187A4

secondary

#C4745D

accent

#643EE9

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #2187A4

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

Preview Lab → · Contrast checker → · Palette generator →