#2187A8#2187A8

#2187A8 is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 58.2% C 0.101 H 225.1°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#2187A8
RGB	rgb(33, 135, 168)
HSL	hsl(195, 67%, 39%)
HSV	hsv(195, 80%, 66%)
CMYK	cmyk(80.4%, 19.6%, 0%, 34.1%)
CIE-LAB	lab(52.37, -16.59, -25.51)
CIE-LCH	lch(52.37, 30.43, 236.96°)
OKLab	oklab(58.25% -0.0714 -0.0716)
OKLCH	oklch(58.25% 0.101 225.1)
XYZ	xyz(16.3561, 20.4764, 40.1285)
Luminance	0.2048 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2187A8 #A84221

analogous

#21A886 #2187A8 #2143A8

triadic

#2187A8 #A82187 #87A821

tetradic

#2187A8 #8621A8 #A84221 #43A821

square

#2187A8 #8621A8 #A84221 #43A821

split-complementary

#2187A8 #A82143 #A88621

monochromatic

#0D3542 #175E75 #2187A8 #30AED6 #63C2E0

Accessibility & contrast

On white

4.12

#2187A8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#2187A8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2187A8

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2187A8	#FFFFFF	#000000	##000000
##2187A8	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7584AA

Deuteranopia (green-blind)

#6377A8

Tritanopia (blue-blind)

#009192

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #2187a8;
/* rgb */ color: rgb(33, 135, 168);
/* oklch */ color: oklch(58.2% 0.101 225.1);

Tailwind

colors: {
  custom: {
    50: '#73aac2',
    500: '#2187a8',
    950: '#000000',
  },
}

SCSS

$custom: #2187a8;
$custom-light: #73aac2;
$custom-dark: #000000;

JSON

{
  "hex": "#2187a8",
  "rgb": {
    "r": 33,
    "g": 135,
    "b": 168
  },
  "hsl": {
    "h": 194.667,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.58247,
    "c": 0.1011,
    "h": 225.1
  },
  "luminance": 0.20478
}

Semantic roles & 50–950 ramp

primary

#2187A8

secondary

#C5785F

accent

#683EEA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #2187A8

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

Preview Lab → · Contrast checker → · Palette generator →