#40A4BF#40A4BF

#40A4BF is a light, moderate cyan. Relative luminance 0.314; OKLCH L 67.2% C 0.099 H 219.0°. Best body text is #000000 at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#40A4BF
RGB	rgb(64, 164, 191)
HSL	hsl(193, 50%, 50%)
HSV	hsv(193, 66%, 75%)
CMYK	cmyk(66.5%, 14.1%, 0%, 25.1%)
CIE-LAB	lab(62.84, -20.38, -22.41)
CIE-LCH	lch(62.84, 30.29, 227.71°)
OKLab	oklab(67.15% -0.0771 -0.0624)
OKLCH	oklch(67.15% 0.099 219)
XYZ	xyz(24.7899, 31.3998, 54.0344)
Luminance	0.3140 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A4BF #BF5B40

analogous

#40BF9B #40A4BF #4064BF

triadic

#40A4BF #BF40A4 #A4BF40

tetradic

#40A4BF #9B40BF #BF5B40 #64BF40

square

#40A4BF #9B40BF #BF5B40 #64BF40

split-complementary

#40A4BF #BF4064 #BF9B40

monochromatic

#215563 #317D91 #40A4BF #6EBACE #9CD0DE

Accessibility & contrast

On white

2.88

#40A4BF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.28

#40A4BF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A4BF

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A4BF	#FFFFFF	#000000	##000000
##40A4BF	1.00	2.88	7.28	7.28
#FFFFFF	2.88	1.00	21.00	21.00
#000000	7.28	21.00	1.00	1.00
##000000	7.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93A0C0

Deuteranopia (green-blind)

#8192BF

Tritanopia (blue-blind)

#00ADAD

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #40a4bf;
/* rgb */ color: rgb(64, 164, 191);
/* oklch */ color: oklch(67.2% 0.099 219.0);

Tailwind

colors: {
  custom: {
    50: '#84bfd2',
    500: '#40a4bf',
    950: '#000000',
  },
}

SCSS

$custom: #40a4bf;
$custom-light: #84bfd2;
$custom-dark: #000000;

JSON

{
  "hex": "#40a4bf",
  "rgb": {
    "r": 64,
    "g": 164,
    "b": 191
  },
  "hsl": {
    "h": 192.756,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.67152,
    "c": 0.09925,
    "h": 219
  },
  "luminance": 0.31402
}

Semantic roles & 50–950 ramp

primary

#40A4BF

secondary

#CA9D91

accent

#6C4ED9

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #40A4BF

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

Preview Lab → · Contrast checker → · Palette generator →