#2183BD#2183BD

#2183BD is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.3% C 0.124 H 240.8°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#2183BD
RGB	rgb(33, 131, 189)
HSL	hsl(202, 70%, 44%)
HSV	hsv(202, 83%, 74%)
CMYK	cmyk(82.5%, 30.7%, 0%, 25.9%)
CIE-LAB	lab(52.09, -6.77, -38.01)
CIE-LCH	lch(52.09, 38.61, 259.90°)
OKLab	oklab(58.34% -0.0603 -0.1078)
OKLCH	oklch(58.34% 0.124 240.8)
XYZ	xyz(17.9252, 20.2278, 51.0939)
Luminance	0.2023 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2183BD #BD5B21

analogous

#21BDA9 #2183BD #2135BD

triadic

#2183BD #BD2183 #83BD21

tetradic

#2183BD #A921BD #BD5B21 #35BD21

square

#2183BD #A921BD #BD5B21 #35BD21

split-complementary

#2183BD #BD2135 #BDA921

monochromatic

#0F3B55 #185F89 #2183BD #3EA2DD #72BBE6

Accessibility & contrast

On white

4.16

#2183BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#2183BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2183BD

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2183BD	#FFFFFF	#000000	##000000
##2183BD	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6784C0

Deuteranopia (green-blind)

#5276BC

Tritanopia (blue-blind)

#009197

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #2183bd;
/* rgb */ color: rgb(33, 131, 189);
/* oklch */ color: oklch(58.3% 0.124 240.8);

Tailwind

colors: {
  custom: {
    50: '#77a6d1',
    500: '#2183bd',
    950: '#000000',
  },
}

SCSS

$custom: #2183bd;
$custom-light: #77a6d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2183bd",
  "rgb": {
    "r": 33,
    "g": 131,
    "b": 189
  },
  "hsl": {
    "h": 202.308,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.58337,
    "c": 0.12353,
    "h": 240.8
  },
  "luminance": 0.2023
}

Semantic roles & 50–950 ramp

primary

#2183BD

secondary

#CD916D

accent

#7D3BED

background

#F7FAFC

surface

#EEF4F9

border

#C9CED2

text

#0A0F14

muted

#7C7F82

Preview Lab

Preview with #2183BD

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

Preview Lab → · Contrast checker → · Palette generator →