#40A8D3#40A8D3

#40A8D3 is a light, moderate cyan. Relative luminance 0.338; OKLCH L 69.0% C 0.113 H 229.3°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#40A8D3
RGB	rgb(64, 168, 211)
HSL	hsl(198, 63%, 54%)
HSV	hsv(198, 70%, 83%)
CMYK	cmyk(69.7%, 20.4%, 0%, 17.3%)
CIE-LAB	lab(64.80, -16.10, -30.52)
CIE-LCH	lch(64.80, 34.51, 242.19°)
OKLab	oklab(68.97% -0.0737 -0.0856)
OKLCH	oklch(68.97% 0.113 229.3)
XYZ	xyz(27.8701, 33.7953, 66.6697)
Luminance	0.3380 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A8D3 #D36B40

analogous

#40D3B5 #40A8D3 #405FD3

triadic

#40A8D3 #D340A8 #A8D340

tetradic

#40A8D3 #B540D3 #D36B40 #5FD340

square

#40A8D3 #B540D3 #D36B40 #5FD340

split-complementary

#40A8D3 #D3405F #D3B540

monochromatic

#1D607C #2887AE #40A8D3 #72BFDE #A3D5EA

Accessibility & contrast

On white

2.71

#40A8D3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.76

#40A8D3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A8D3

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A8D3	#FFFFFF	#000000	##000000
##40A8D3	1.00	2.71	7.76	7.76
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.76	21.00	1.00	1.00
##000000	7.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92A5D5

Deuteranopia (green-blind)

#7E97D2

Tritanopia (blue-blind)

#00B4B6

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #40a8d3;
/* rgb */ color: rgb(64, 168, 211);
/* oklch */ color: oklch(69.0% 0.113 229.3);

Tailwind

colors: {
  custom: {
    50: '#86c1e0',
    500: '#40a8d3',
    950: '#000000',
  },
}

SCSS

$custom: #40a8d3;
$custom-light: #86c1e0;
$custom-dark: #000000;

JSON

{
  "hex": "#40a8d3",
  "rgb": {
    "r": 64,
    "g": 168,
    "b": 211
  },
  "hsl": {
    "h": 197.551,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.68971,
    "c": 0.11293,
    "h": 229.3
  },
  "luminance": 0.33798
}

Semantic roles & 50–950 ramp

primary

#40A8D3

secondary

#D7AA98

accent

#7242E6

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #40A8D3

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

Preview Lab → · Contrast checker → · Palette generator →