#40A8D0#40A8D0

#40A8D0 is a light, moderate cyan. Relative luminance 0.336; OKLCH L 68.8% C 0.110 H 227.4°. Best body text is #000000 at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#40A8D0
RGB	rgb(64, 168, 208)
HSL	hsl(197, 61%, 53%)
HSV	hsv(197, 69%, 82%)
CMYK	cmyk(69.2%, 19.2%, 0%, 18.4%)
CIE-LAB	lab(64.68, -17.07, -29.04)
CIE-LCH	lch(64.68, 33.69, 239.55°)
OKLab	oklab(68.84% -0.0748 -0.0813)
OKLCH	oklch(68.84% 0.11 227.4)
XYZ	xyz(27.4976, 33.6462, 64.7075)
Luminance	0.3365 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A8D0 #D06840

analogous

#40D0B0 #40A8D0 #4060D0

triadic

#40A8D0 #D040A8 #A8D040

tetradic

#40A8D0 #B040D0 #D06840 #60D040

square

#40A8D0 #B040D0 #D06840 #60D040

split-complementary

#40A8D0 #D04060 #D0B040

monochromatic

#1E5F78 #2A86A9 #40A8D0 #71BEDC #A2D5E8

Accessibility & contrast

On white

2.72

#40A8D0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.73

#40A8D0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A8D0

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A8D0	#FFFFFF	#000000	##000000
##40A8D0	1.00	2.72	7.73	7.73
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.73	21.00	1.00	1.00
##000000	7.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93A5D2

Deuteranopia (green-blind)

#7F97CF

Tritanopia (blue-blind)

#00B3B5

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #40a8d0;
/* rgb */ color: rgb(64, 168, 208);
/* oklch */ color: oklch(68.8% 0.110 227.4);

Tailwind

colors: {
  custom: {
    50: '#86c2de',
    500: '#40a8d0',
    950: '#000000',
  },
}

SCSS

$custom: #40a8d0;
$custom-light: #86c2de;
$custom-dark: #000000;

JSON

{
  "hex": "#40a8d0",
  "rgb": {
    "r": 64,
    "g": 168,
    "b": 208
  },
  "hsl": {
    "h": 196.667,
    "s": 60.504,
    "l": 53.333
  },
  "oklch": {
    "l": 0.68837,
    "c": 0.11049,
    "h": 227.4
  },
  "luminance": 0.33649
}

Semantic roles & 50–950 ramp

primary

#40A8D0

secondary

#D5A897

accent

#7044E4

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #40A8D0

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

Preview Lab → · Contrast checker → · Palette generator →