#40A8D9#40A8D9

#40A8D9 is a light, moderate cyan. Relative luminance 0.341; OKLCH L 69.2% C 0.118 H 232.7°. Best body text is #000000 at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#40A8D9
RGB	rgb(64, 168, 217)
HSL	hsl(199, 67%, 55%)
HSV	hsv(199, 71%, 85%)
CMYK	cmyk(70.5%, 22.6%, 0%, 14.9%)
CIE-LAB	lab(65.04, -14.13, -33.46)
CIE-LCH	lch(65.04, 36.32, 247.11°)
OKLab	oklab(69.25% -0.0716 -0.094)
OKLCH	oklch(69.25% 0.118 232.7)
XYZ	xyz(28.6364, 34.1018, 70.7053)
Luminance	0.3411 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A8D9 #D97140

analogous

#40D9BE #40A8D9 #405BD9

triadic

#40A8D9 #D940A8 #A8D940

tetradic

#40A8D9 #BE40D9 #D97140 #5BD940

square

#40A8D9 #BE40D9 #D97140 #5BD940

split-complementary

#40A8D9 #D9405B #D9BE40

monochromatic

#1A6284 #2488B7 #40A8D9 #73BFE3 #A6D7ED

Accessibility & contrast

On white

2.69

#40A8D9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.82

#40A8D9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A8D9

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A8D9	#FFFFFF	#000000	##000000
##40A8D9	1.00	2.69	7.82	7.82
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.82	21.00	1.00	1.00
##000000	7.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90A6DB

Deuteranopia (green-blind)

#7B97D8

Tritanopia (blue-blind)

#00B5B8

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #40a8d9;
/* rgb */ color: rgb(64, 168, 217);
/* oklch */ color: oklch(69.2% 0.118 232.7);

Tailwind

colors: {
  custom: {
    50: '#87c1e5',
    500: '#40a8d9',
    950: '#000000',
  },
}

SCSS

$custom: #40a8d9;
$custom-light: #87c1e5;
$custom-dark: #000000;

JSON

{
  "hex": "#40a8d9",
  "rgb": {
    "r": 64,
    "g": 168,
    "b": 217
  },
  "hsl": {
    "h": 199.216,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.69246,
    "c": 0.11817,
    "h": 232.7
  },
  "luminance": 0.34105
}

Semantic roles & 50–950 ramp

primary

#40A8D9

secondary

#DAAF9A

accent

#753EEA

background

#F9FBFE

surface

#F1F7FC

border

#CBD0D5

text

#0D1215

muted

#7E8184

Preview Lab

Preview with #40A8D9

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

Preview Lab → · Contrast checker → · Palette generator →