#40A4D3#40A4D3

#40A4D3 is a light, moderate cyan. Relative luminance 0.323; OKLCH L 68.0% C 0.115 H 232.5°. Best body text is #000000 at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#40A4D3
RGB	rgb(64, 164, 211)
HSL	hsl(199, 63%, 54%)
HSV	hsv(199, 70%, 83%)
CMYK	cmyk(69.7%, 22.3%, 0%, 17.3%)
CIE-LAB	lab(63.62, -13.94, -32.34)
CIE-LCH	lch(63.62, 35.22, 246.68°)
OKLab	oklab(68.03% -0.0697 -0.0908)
OKLCH	oklch(68.03% 0.115 232.5)
XYZ	xyz(27.1430, 32.3410, 66.4273)
Luminance	0.3234 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A4D3 #D36F40

analogous

#40D3B9 #40A4D3 #405BD3

triadic

#40A4D3 #D340A4 #A4D340

tetradic

#40A4D3 #B940D3 #D36F40 #5BD340

square

#40A4D3 #B940D3 #D36F40 #5BD340

split-complementary

#40A4D3 #D3405B #D3B940

monochromatic

#1D5E7C #2883AE #40A4D3 #72BCDE #A3D3EA

Accessibility & contrast

On white

2.81

#40A4D3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.47

#40A4D3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A4D3

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A4D3	#FFFFFF	#000000	##000000
##40A4D3	1.00	2.81	7.47	7.47
#FFFFFF	2.81	1.00	21.00	21.00
#000000	7.47	21.00	1.00	1.00
##000000	7.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DA2D5

Deuteranopia (green-blind)

#7994D2

Tritanopia (blue-blind)

#00B1B4

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #40a4d3;
/* rgb */ color: rgb(64, 164, 211);
/* oklch */ color: oklch(68.0% 0.115 232.5);

Tailwind

colors: {
  custom: {
    50: '#86bfe0',
    500: '#40a4d3',
    950: '#000000',
  },
}

SCSS

$custom: #40a4d3;
$custom-light: #86bfe0;
$custom-dark: #000000;

JSON

{
  "hex": "#40a4d3",
  "rgb": {
    "r": 64,
    "g": 164,
    "b": 211
  },
  "hsl": {
    "h": 199.184,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.68033,
    "c": 0.1145,
    "h": 232.5
  },
  "luminance": 0.32344
}

Semantic roles & 50–950 ramp

primary

#40A4D3

secondary

#D7AC98

accent

#7642E6

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #40A4D3

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

Preview Lab → · Contrast checker → · Palette generator →