#40ADD5#40ADD5

#40ADD5 is a light, moderate cyan. Relative luminance 0.358; OKLCH L 70.2% C 0.113 H 226.4°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#40ADD5
RGB	rgb(64, 173, 213)
HSL	hsl(196, 64%, 54%)
HSV	hsv(196, 70%, 84%)
CMYK	cmyk(70%, 18.8%, 0%, 16.5%)
CIE-LAB	lab(66.35, -18.10, -29.23)
CIE-LCH	lch(66.35, 34.38, 238.23°)
OKLab	oklab(70.24% -0.0779 -0.0819)
OKLCH	oklch(70.24% 0.113 226.4)
XYZ	xyz(29.0633, 35.7779, 68.3120)
Luminance	0.3578 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40ADD5 #D56840

analogous

#40D5B2 #40ADD5 #4063D5

triadic

#40ADD5 #D540AD #ADD540

tetradic

#40ADD5 #B240D5 #D56840 #63D540

square

#40ADD5 #B240D5 #D56840 #63D540

split-complementary

#40ADD5 #D54063 #D5B240

monochromatic

#1C647F #278CB1 #40ADD5 #72C3E0 #A4D8EB

Accessibility & contrast

On white

2.57

#40ADD5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.16

#40ADD5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40ADD5

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40ADD5	#FFFFFF	#000000	##000000
##40ADD5	1.00	2.57	8.16	8.16
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.16	21.00	1.00	1.00
##000000	8.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97AAD7

Deuteranopia (green-blind)

#839BD5

Tritanopia (blue-blind)

#00B9BA

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40add5;
/* rgb */ color: rgb(64, 173, 213);
/* oklch */ color: oklch(70.2% 0.113 226.4);

Tailwind

colors: {
  custom: {
    50: '#87c5e2',
    500: '#40add5',
    950: '#000000',
  },
}

SCSS

$custom: #40add5;
$custom-light: #87c5e2;
$custom-dark: #000000;

JSON

{
  "hex": "#40add5",
  "rgb": {
    "r": 64,
    "g": 173,
    "b": 213
  },
  "hsl": {
    "h": 196.107,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.70236,
    "c": 0.11301,
    "h": 226.4
  },
  "luminance": 0.35781
}

Semantic roles & 50–950 ramp

primary

#40ADD5

secondary

#D8AA99

accent

#6D41E7

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40ADD5

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

Preview Lab → · Contrast checker → · Palette generator →