#40A8D4#40A8D4

#40A8D4 is a light, moderate cyan. Relative luminance 0.338; OKLCH L 69.0% C 0.114 H 229.9°. Best body text is #000000 at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#40A8D4
RGB	rgb(64, 168, 212)
HSL	hsl(198, 63%, 54%)
HSV	hsv(198, 70%, 83%)
CMYK	cmyk(69.8%, 20.8%, 0%, 16.9%)
CIE-LAB	lab(64.84, -15.77, -31.01)
CIE-LCH	lch(64.84, 34.79, 243.05°)
OKLab	oklab(69.02% -0.0733 -0.087)
OKLCH	oklch(69.02% 0.114 229.9)
XYZ	xyz(27.9959, 33.8456, 67.3320)
Luminance	0.3385 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A8D4 #D46C40

analogous

#40D4B6 #40A8D4 #405ED4

triadic

#40A8D4 #D440A8 #A8D440

tetradic

#40A8D4 #B640D4 #D46C40 #5ED440

square

#40A8D4 #B640D4 #D46C40 #5ED440

split-complementary

#40A8D4 #D4405E #D4B640

monochromatic

#1C607D #2787AF #40A8D4 #72BFDF #A4D6EA

Accessibility & contrast

On white

2.70

#40A8D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.77

#40A8D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A8D4

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A8D4	#FFFFFF	#000000	##000000
##40A8D4	1.00	2.70	7.77	7.77
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.77	21.00	1.00	1.00
##000000	7.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91A6D6

Deuteranopia (green-blind)

#7D97D3

Tritanopia (blue-blind)

#00B4B7

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #40a8d4;
/* rgb */ color: rgb(64, 168, 212);
/* oklch */ color: oklch(69.0% 0.114 229.9);

Tailwind

colors: {
  custom: {
    50: '#87c1e1',
    500: '#40a8d4',
    950: '#000000',
  },
}

SCSS

$custom: #40a8d4;
$custom-light: #87c1e1;
$custom-dark: #000000;

JSON

{
  "hex": "#40a8d4",
  "rgb": {
    "r": 64,
    "g": 168,
    "b": 212
  },
  "hsl": {
    "h": 197.838,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.69017,
    "c": 0.11377,
    "h": 229.9
  },
  "luminance": 0.33849
}

Semantic roles & 50–950 ramp

primary

#40A8D4

secondary

#D7AB98

accent

#7342E6

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #40A8D4

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

Preview Lab → · Contrast checker → · Palette generator →