#40A8D5#40A8D5

#40A8D5 is a light, moderate cyan. Relative luminance 0.339; OKLCH L 69.1% C 0.115 H 230.5°. Best body text is #000000 at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#40A8D5
RGB	rgb(64, 168, 213)
HSL	hsl(198, 64%, 54%)
HSV	hsv(198, 70%, 84%)
CMYK	cmyk(70%, 21.1%, 0%, 16.5%)
CIE-LAB	lab(64.88, -15.44, -31.50)
CIE-LCH	lch(64.88, 35.09, 243.88°)
OKLab	oklab(69.06% -0.073 -0.0884)
OKLCH	oklch(69.06% 0.115 230.5)
XYZ	xyz(28.1224, 33.8962, 67.9984)
Luminance	0.3390 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A8D5 #D56D40

analogous

#40D5B8 #40A8D5 #405ED5

triadic

#40A8D5 #D540A8 #A8D540

tetradic

#40A8D5 #B840D5 #D56D40 #5ED540

square

#40A8D5 #B840D5 #D56D40 #5ED540

split-complementary

#40A8D5 #D5405E #D5B840

monochromatic

#1C617F #2787B1 #40A8D5 #72BFE0 #A4D6EB

Accessibility & contrast

On white

2.70

#40A8D5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.78

#40A8D5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A8D5

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A8D5	#FFFFFF	#000000	##000000
##40A8D5	1.00	2.70	7.78	7.78
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.78	21.00	1.00	1.00
##000000	7.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91A6D7

Deuteranopia (green-blind)

#7D97D4

Tritanopia (blue-blind)

#00B4B7

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #40a8d5;
/* rgb */ color: rgb(64, 168, 213);
/* oklch */ color: oklch(69.1% 0.115 230.5);

Tailwind

colors: {
  custom: {
    50: '#87c1e2',
    500: '#40a8d5',
    950: '#000000',
  },
}

SCSS

$custom: #40a8d5;
$custom-light: #87c1e2;
$custom-dark: #000000;

JSON

{
  "hex": "#40a8d5",
  "rgb": {
    "r": 64,
    "g": 168,
    "b": 213
  },
  "hsl": {
    "h": 198.121,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.69062,
    "c": 0.11462,
    "h": 230.5
  },
  "luminance": 0.33899
}

Semantic roles & 50–950 ramp

primary

#40A8D5

secondary

#D8AC99

accent

#7341E7

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #40A8D5

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

Preview Lab → · Contrast checker → · Palette generator →