#2187BD#2187BD

#2187BD is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 59.3% C 0.121 H 238.0°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#2187BD
RGB	rgb(33, 135, 189)
HSL	hsl(201, 70%, 44%)
HSV	hsv(201, 83%, 74%)
CMYK	cmyk(82.5%, 28.6%, 0%, 25.9%)
CIE-LAB	lab(53.30, -9.09, -36.12)
CIE-LCH	lch(53.30, 37.24, 255.88°)
OKLab	oklab(59.3% -0.0639 -0.1022)
OKLCH	oklch(59.3% 0.121 238)
XYZ	xyz(18.4728, 21.3231, 51.2764)
Luminance	0.2132 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2187BD #BD5721

analogous

#21BDA5 #2187BD #2139BD

triadic

#2187BD #BD2187 #87BD21

tetradic

#2187BD #A521BD #BD5721 #39BD21

square

#2187BD #A521BD #BD5721 #39BD21

split-complementary

#2187BD #BD2139 #BDA521

monochromatic

#0F3D55 #186289 #2187BD #3EA6DD #72BEE6

Accessibility & contrast

On white

3.99

#2187BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#2187BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2187BD

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2187BD	#FFFFFF	#000000	##000000
##2187BD	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D87BF

Deuteranopia (green-blind)

#5879BC

Tritanopia (blue-blind)

#00959A

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #2187bd;
/* rgb */ color: rgb(33, 135, 189);
/* oklch */ color: oklch(59.3% 0.121 238.0);

Tailwind

colors: {
  custom: {
    50: '#77a9d1',
    500: '#2187bd',
    950: '#000000',
  },
}

SCSS

$custom: #2187bd;
$custom-light: #77a9d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2187bd",
  "rgb": {
    "r": 33,
    "g": 135,
    "b": 189
  },
  "hsl": {
    "h": 200.769,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.59296,
    "c": 0.12056,
    "h": 238
  },
  "luminance": 0.21325
}

Semantic roles & 50–950 ramp

primary

#2187BD

secondary

#CD8E6D

accent

#783BED

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0A1014

muted

#7C7F82

Preview Lab

Preview with #2187BD

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

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