#40ACD3#40ACD3

#40ACD3 is a light, moderate cyan. Relative luminance 0.353; OKLCH L 69.9% C 0.112 H 226.0°. Best body text is #000000 at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#40ACD3
RGB	rgb(64, 172, 211)
HSL	hsl(196, 63%, 54%)
HSV	hsv(196, 70%, 83%)
CMYK	cmyk(69.7%, 18.5%, 0%, 17.3%)
CIE-LAB	lab(65.98, -18.22, -28.70)
CIE-LCH	lch(65.98, 34.00, 237.59°)
OKLab	oklab(69.91% -0.0777 -0.0803)
OKLCH	oklch(69.91% 0.112 226)
XYZ	xyz(28.6200, 35.2950, 66.9196)
Luminance	0.3530 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40ACD3 #D36740

analogous

#40D3B0 #40ACD3 #4063D3

triadic

#40ACD3 #D340AC #ACD340

tetradic

#40ACD3 #B040D3 #D36740 #63D340

square

#40ACD3 #B040D3 #D36740 #63D340

split-complementary

#40ACD3 #D34063 #D3B040

monochromatic

#1D637C #288AAE #40ACD3 #72C2DE #A3D7EA

Accessibility & contrast

On white

2.61

#40ACD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.06

#40ACD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40ACD3

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40ACD3	#FFFFFF	#000000	##000000
##40ACD3	1.00	2.61	8.06	8.06
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.06	21.00	1.00	1.00
##000000	8.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97A9D5

Deuteranopia (green-blind)

#839AD3

Tritanopia (blue-blind)

#00B7B9

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40acd3;
/* rgb */ color: rgb(64, 172, 211);
/* oklch */ color: oklch(69.9% 0.112 226.0);

Tailwind

colors: {
  custom: {
    50: '#87c4e0',
    500: '#40acd3',
    950: '#000000',
  },
}

SCSS

$custom: #40acd3;
$custom-light: #87c4e0;
$custom-dark: #000000;

JSON

{
  "hex": "#40acd3",
  "rgb": {
    "r": 64,
    "g": 172,
    "b": 211
  },
  "hsl": {
    "h": 195.918,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.69913,
    "c": 0.11175,
    "h": 226
  },
  "luminance": 0.35298
}

Semantic roles & 50–950 ramp

primary

#40ACD3

secondary

#D7A998

accent

#6E42E6

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #40ACD3

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

Preview Lab → · Contrast checker → · Palette generator →