#40AED4#40AED4

#40AED4 is a light, moderate cyan. Relative luminance 0.361; OKLCH L 70.4% C 0.112 H 224.9°. Best body text is #000000 at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#40AED4
RGB	rgb(64, 174, 212)
HSL	hsl(195, 63%, 54%)
HSV	hsv(195, 70%, 83%)
CMYK	cmyk(69.8%, 17.9%, 0%, 16.9%)
CIE-LAB	lab(66.61, -18.95, -28.29)
CIE-LCH	lch(66.61, 34.05, 236.18°)
OKLab	oklab(70.43% -0.0793 -0.0791)
OKLCH	oklch(70.43% 0.112 224.9)
XYZ	xyz(29.1292, 36.1123, 67.7098)
Luminance	0.3612 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40AED4 #D46640

analogous

#40D4B0 #40AED4 #4064D4

triadic

#40AED4 #D440AE #AED440

tetradic

#40AED4 #B040D4 #D46640 #64D440

square

#40AED4 #B040D4 #D46640 #64D440

split-complementary

#40AED4 #D44064 #D4B040

monochromatic

#1C647D #278CAF #40AED4 #72C3DF #A4D8EA

Accessibility & contrast

On white

2.55

#40AED4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.22

#40AED4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40AED4

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40AED4	#FFFFFF	#000000	##000000
##40AED4	1.00	2.55	8.22	8.22
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.22	21.00	1.00	1.00
##000000	8.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99AAD6

Deuteranopia (green-blind)

#859CD4

Tritanopia (blue-blind)

#00B9BA

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #40aed4;
/* rgb */ color: rgb(64, 174, 212);
/* oklch */ color: oklch(70.4% 0.112 224.9);

Tailwind

colors: {
  custom: {
    50: '#87c6e1',
    500: '#40aed4',
    950: '#000000',
  },
}

SCSS

$custom: #40aed4;
$custom-light: #87c6e1;
$custom-dark: #000000;

JSON

{
  "hex": "#40aed4",
  "rgb": {
    "r": 64,
    "g": 174,
    "b": 212
  },
  "hsl": {
    "h": 195.405,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.70428,
    "c": 0.11202,
    "h": 224.9
  },
  "luminance": 0.36116
}

Semantic roles & 50–950 ramp

primary

#40AED4

secondary

#D7A998

accent

#6C42E6

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40AED4

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

Preview Lab → · Contrast checker → · Palette generator →