#40A0D8#40A0D8

#40A0D8 is a light, vivid cyan. Relative luminance 0.312; OKLCH L 67.3% C 0.121 H 238.1°. Best body text is #000000 at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#40A0D8
RGB	rgb(64, 160, 216)
HSL	hsl(202, 66%, 55%)
HSV	hsv(202, 70%, 85%)
CMYK	cmyk(70.4%, 25.9%, 0%, 15.3%)
CIE-LAB	lab(62.66, -10.08, -36.61)
CIE-LCH	lch(62.66, 37.97, 254.60°)
OKLab	oklab(67.34% -0.0641 -0.1032)
OKLCH	oklch(67.34% 0.121 238.1)
XYZ	xyz(27.0750, 31.1864, 69.5451)
Luminance	0.3119 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A0D8 #D87840

analogous

#40D8C4 #40A0D8 #4054D8

triadic

#40A0D8 #D840A0 #A0D840

tetradic

#40A0D8 #C440D8 #D87840 #54D840

square

#40A0D8 #C440D8 #D87840 #54D840

split-complementary

#40A0D8 #D84054 #D8C440

monochromatic

#1B5D83 #2580B6 #40A0D8 #73B9E2 #A6D3ED

Accessibility & contrast

On white

2.90

#40A0D8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.24

#40A0D8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A0D8

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A0D8	#FFFFFF	#000000	##000000
##40A0D8	1.00	2.90	7.24	7.24
#FFFFFF	2.90	1.00	21.00	21.00
#000000	7.24	21.00	1.00	1.00
##000000	7.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86A0DB

Deuteranopia (green-blind)

#7191D7

Tritanopia (blue-blind)

#00AEB3

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #40a0d8;
/* rgb */ color: rgb(64, 160, 216);
/* oklch */ color: oklch(67.3% 0.121 238.1);

Tailwind

colors: {
  custom: {
    50: '#87bce4',
    500: '#40a0d8',
    950: '#000000',
  },
}

SCSS

$custom: #40a0d8;
$custom-light: #87bce4;
$custom-dark: #000000;

JSON

{
  "hex": "#40a0d8",
  "rgb": {
    "r": 64,
    "g": 160,
    "b": 216
  },
  "hsl": {
    "h": 202.105,
    "s": 66.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.6734,
    "c": 0.12147,
    "h": 238.1
  },
  "luminance": 0.31189
}

Semantic roles & 50–950 ramp

primary

#40A0D8

secondary

#DAB19A

accent

#7D3FE9

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #40A0D8

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

Preview Lab → · Contrast checker → · Palette generator →