#40A9C7#40A9C7

#40A9C7 is a light, moderate cyan. Relative luminance 0.336; OKLCH L 68.7% C 0.104 H 220.4°. Best body text is #000000 at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#40A9C7
RGB	rgb(64, 169, 199)
HSL	hsl(193, 55%, 52%)
HSV	hsv(193, 68%, 78%)
CMYK	cmyk(67.8%, 15.1%, 0%, 22%)
CIE-LAB	lab(64.63, -20.48, -24.12)
CIE-LCH	lch(64.63, 31.64, 229.68°)
OKLab	oklab(68.69% -0.0792 -0.0673)
OKLCH	oklch(68.69% 0.104 220.4)
XYZ	xyz(26.6069, 33.5865, 59.1024)
Luminance	0.3359 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A9C7 #C75E40

analogous

#40C7A2 #40A9C7 #4066C7

triadic

#40A9C7 #C740A9 #A9C740

tetradic

#40A9C7 #A240C7 #C75E40 #66C740

square

#40A9C7 #A240C7 #C75E40 #66C740

split-complementary

#40A9C7 #C74066 #C7A240

monochromatic

#205C6D #2E849C #40A9C7 #6FBED5 #9FD4E3

Accessibility & contrast

On white

2.72

#40A9C7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.72

#40A9C7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A9C7

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A9C7	#FFFFFF	#000000	##000000
##40A9C7	1.00	2.72	7.72	7.72
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.72	21.00	1.00	1.00
##000000	7.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97A5C9

Deuteranopia (green-blind)

#8497C7

Tritanopia (blue-blind)

#00B3B3

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #40a9c7;
/* rgb */ color: rgb(64, 169, 199);
/* oklch */ color: oklch(68.7% 0.104 220.4);

Tailwind

colors: {
  custom: {
    50: '#85c2d8',
    500: '#40a9c7',
    950: '#000000',
  },
}

SCSS

$custom: #40a9c7;
$custom-light: #85c2d8;
$custom-dark: #000000;

JSON

{
  "hex": "#40a9c7",
  "rgb": {
    "r": 64,
    "g": 169,
    "b": 199
  },
  "hsl": {
    "h": 193.333,
    "s": 54.656,
    "l": 51.569
  },
  "oklch": {
    "l": 0.68685,
    "c": 0.10392,
    "h": 220.4
  },
  "luminance": 0.33589
}

Semantic roles & 50–950 ramp

primary

#40A9C7

secondary

#CFA194

accent

#6B4ADE

background

#F8FBFD

surface

#F0F7FA

border

#CBD0D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #40A9C7

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

Preview Lab → · Contrast checker → · Palette generator →