#40ACC4#40ACC4

#40ACC4 is a light, moderate cyan. Relative luminance 0.346; OKLCH L 69.3% C 0.102 H 215.3°. Best body text is #000000 at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#40ACC4
RGB	rgb(64, 172, 196)
HSL	hsl(191, 53%, 51%)
HSV	hsv(191, 67%, 77%)
CMYK	cmyk(67.3%, 12.2%, 0%, 23.1%)
CIE-LAB	lab(65.42, -22.96, -21.26)
CIE-LCH	lch(65.42, 31.29, 222.79°)
OKLab	oklab(69.28% -0.0834 -0.0592)
OKLCH	oklch(69.28% 0.102 215.3)
XYZ	xyz(26.8265, 34.5776, 57.4742)
Luminance	0.3458 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40ACC4 #C45840

analogous

#40C49A #40ACC4 #406AC4

triadic

#40ACC4 #C440AC #ACC440

tetradic

#40ACC4 #9A40C4 #C45840 #6AC440

square

#40ACC4 #9A40C4 #C45840 #6AC440

split-complementary

#40ACC4 #C4406A #C49A40

monochromatic

#205C69 #2F8598 #40ACC4 #6FC0D2 #9ED5E1

Accessibility & contrast

On white

2.65

#40ACC4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.92

#40ACC4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40ACC4

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40ACC4	#FFFFFF	#000000	##000000
##40ACC4	1.00	2.65	7.92	7.92
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.92	21.00	1.00	1.00
##000000	7.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BA7C5

Deuteranopia (green-blind)

#8899C4

Tritanopia (blue-blind)

#00B5B3

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #40acc4;
/* rgb */ color: rgb(64, 172, 196);
/* oklch */ color: oklch(69.3% 0.102 215.3);

Tailwind

colors: {
  custom: {
    50: '#85c5d6',
    500: '#40acc4',
    950: '#000000',
  },
}

SCSS

$custom: #40acc4;
$custom-light: #85c5d6;
$custom-dark: #000000;

JSON

{
  "hex": "#40acc4",
  "rgb": {
    "r": 64,
    "g": 172,
    "b": 196
  },
  "hsl": {
    "h": 190.909,
    "s": 52.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.69279,
    "c": 0.10227,
    "h": 215.3
  },
  "luminance": 0.34581
}

Semantic roles & 50–950 ramp

primary

#40ACC4

secondary

#CD9D93

accent

#664CDC

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #40ACC4

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

Preview Lab → · Contrast checker → · Palette generator →