#40AED5#40AED5

#40AED5 is a light, moderate cyan. Relative luminance 0.362; OKLCH L 70.5% C 0.113 H 225.6°. Best body text is #000000 at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#40AED5
RGB	rgb(64, 174, 213)
HSL	hsl(196, 64%, 54%)
HSV	hsv(196, 70%, 84%)
CMYK	cmyk(70%, 18.3%, 0%, 16.5%)
CIE-LAB	lab(66.64, -18.63, -28.78)
CIE-LCH	lch(66.64, 34.28, 237.08°)
OKLab	oklab(70.47% -0.0789 -0.0805)
OKLCH	oklch(70.47% 0.113 225.6)
XYZ	xyz(29.2558, 36.1629, 68.3762)
Luminance	0.3617 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40AED5 #D56740

analogous

#40D5B2 #40AED5 #4064D5

triadic

#40AED5 #D540AE #AED540

tetradic

#40AED5 #B240D5 #D56740 #64D540

square

#40AED5 #B240D5 #D56740 #64D540

split-complementary

#40AED5 #D54064 #D5B240

monochromatic

#1C657F #278DB1 #40AED5 #72C3E0 #A4D9EB

Accessibility & contrast

On white

2.55

#40AED5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.23

#40AED5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40AED5

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40AED5	#FFFFFF	#000000	##000000
##40AED5	1.00	2.55	8.23	8.23
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.23	21.00	1.00	1.00
##000000	8.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99ABD7

Deuteranopia (green-blind)

#849CD5

Tritanopia (blue-blind)

#00BABB

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #40aed5;
/* rgb */ color: rgb(64, 174, 213);
/* oklch */ color: oklch(70.5% 0.113 225.6);

Tailwind

colors: {
  custom: {
    50: '#87c6e2',
    500: '#40aed5',
    950: '#000000',
  },
}

SCSS

$custom: #40aed5;
$custom-light: #87c6e2;
$custom-dark: #000000;

JSON

{
  "hex": "#40aed5",
  "rgb": {
    "r": 64,
    "g": 174,
    "b": 213
  },
  "hsl": {
    "h": 195.705,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.70472,
    "c": 0.11276,
    "h": 225.6
  },
  "luminance": 0.36166
}

Semantic roles & 50–950 ramp

primary

#40AED5

secondary

#D8A999

accent

#6C41E7

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40AED5

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

Preview Lab → · Contrast checker → · Palette generator →