#40AAD3#40AAD3

#40AAD3 is a light, moderate cyan. Relative luminance 0.345; OKLCH L 69.4% C 0.112 H 227.6°. Best body text is #000000 at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#40AAD3
RGB	rgb(64, 170, 211)
HSL	hsl(197, 63%, 54%)
HSV	hsv(197, 70%, 83%)
CMYK	cmyk(69.7%, 19.4%, 0%, 17.3%)
CIE-LAB	lab(65.39, -17.16, -29.61)
CIE-LCH	lch(65.39, 34.23, 239.90°)
OKLab	oklab(69.44% -0.0757 -0.0829)
OKLCH	oklch(69.44% 0.112 227.6)
XYZ	xyz(28.2422, 34.5394, 66.7937)
Luminance	0.3454 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40AAD3 #D36940

analogous

#40D3B3 #40AAD3 #4061D3

triadic

#40AAD3 #D340AA #AAD340

tetradic

#40AAD3 #B340D3 #D36940 #61D340

square

#40AAD3 #B340D3 #D36940 #61D340

split-complementary

#40AAD3 #D34061 #D3B340

monochromatic

#1D617C #2888AE #40AAD3 #72C0DE #A3D6EA

Accessibility & contrast

On white

2.66

#40AAD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.91

#40AAD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40AAD3

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40AAD3	#FFFFFF	#000000	##000000
##40AAD3	1.00	2.66	7.91	7.91
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.91	21.00	1.00	1.00
##000000	7.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94A7D5

Deuteranopia (green-blind)

#8098D2

Tritanopia (blue-blind)

#00B6B7

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #40aad3;
/* rgb */ color: rgb(64, 170, 211);
/* oklch */ color: oklch(69.4% 0.112 227.6);

Tailwind

colors: {
  custom: {
    50: '#86c3e0',
    500: '#40aad3',
    950: '#000000',
  },
}

SCSS

$custom: #40aad3;
$custom-light: #86c3e0;
$custom-dark: #000000;

JSON

{
  "hex": "#40aad3",
  "rgb": {
    "r": 64,
    "g": 170,
    "b": 211
  },
  "hsl": {
    "h": 196.735,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.69442,
    "c": 0.11229,
    "h": 227.6
  },
  "luminance": 0.34543
}

Semantic roles & 50–950 ramp

primary

#40AAD3

secondary

#D7AA98

accent

#7042E6

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #40AAD3

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

Preview Lab → · Contrast checker → · Palette generator →