#40A3D4#40A3D4

#40A3D4 is a light, moderate cyan. Relative luminance 0.320; OKLCH L 67.8% C 0.116 H 233.8°. Best body text is #000000 at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#40A3D4
RGB	rgb(64, 163, 212)
HSL	hsl(200, 63%, 54%)
HSV	hsv(200, 70%, 83%)
CMYK	cmyk(69.8%, 23.1%, 0%, 16.9%)
CIE-LAB	lab(63.37, -13.07, -33.29)
CIE-LCH	lch(63.37, 35.76, 248.57°)
OKLab	oklab(67.85% -0.0684 -0.0936)
OKLCH	oklch(67.85% 0.116 233.8)
XYZ	xyz(27.0905, 32.0348, 67.0302)
Luminance	0.3204 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A3D4 #D47140

analogous

#40D4BB #40A3D4 #4059D4

triadic

#40A3D4 #D440A3 #A3D440

tetradic

#40A3D4 #BB40D4 #D47140 #59D440

square

#40A3D4 #BB40D4 #D47140 #59D440

split-complementary

#40A3D4 #D44059 #D4BB40

monochromatic

#1C5D7D #2782AF #40A3D4 #72BBDF #A4D3EA

Accessibility & contrast

On white

2.83

#40A3D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.41

#40A3D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A3D4

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A3D4	#FFFFFF	#000000	##000000
##40A3D4	1.00	2.83	7.41	7.41
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.41	21.00	1.00	1.00
##000000	7.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BA2D6

Deuteranopia (green-blind)

#7793D3

Tritanopia (blue-blind)

#00B0B3

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #40a3d4;
/* rgb */ color: rgb(64, 163, 212);
/* oklch */ color: oklch(67.8% 0.116 233.8);

Tailwind

colors: {
  custom: {
    50: '#86bee1',
    500: '#40a3d4',
    950: '#000000',
  },
}

SCSS

$custom: #40a3d4;
$custom-light: #86bee1;
$custom-dark: #000000;

JSON

{
  "hex": "#40a3d4",
  "rgb": {
    "r": 64,
    "g": 163,
    "b": 212
  },
  "hsl": {
    "h": 199.865,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.67846,
    "c": 0.11589,
    "h": 233.8
  },
  "luminance": 0.32038
}

Semantic roles & 50–950 ramp

primary

#40A3D4

secondary

#D7AD98

accent

#7842E6

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #40A3D4

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

Preview Lab → · Contrast checker → · Palette generator →