#40AEC4#40AEC4

#40AEC4 is a light, moderate cyan. Relative luminance 0.353; OKLCH L 69.8% C 0.103 H 213.5°. Best body text is #000000 at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#40AEC4
RGB	rgb(64, 174, 196)
HSL	hsl(190, 53%, 51%)
HSV	hsv(190, 67%, 77%)
CMYK	cmyk(67.3%, 11.2%, 0%, 23.1%)
CIE-LAB	lab(66.02, -23.98, -20.35)
CIE-LCH	lch(66.02, 31.45, 220.31°)
OKLab	oklab(69.76% -0.0855 -0.0566)
OKLCH	oklch(69.76% 0.103 213.5)
XYZ	xyz(27.2100, 35.3446, 57.6020)
Luminance	0.3535 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40AEC4 #C45640

analogous

#40C498 #40AEC4 #406CC4

triadic

#40AEC4 #C440AE #AEC440

tetradic

#40AEC4 #9840C4 #C45640 #6CC440

square

#40AEC4 #9840C4 #C45640 #6CC440

split-complementary

#40AEC4 #C4406C #C49840

monochromatic

#205D69 #2F8698 #40AEC4 #6FC2D2 #9ED6E1

Accessibility & contrast

On white

2.60

#40AEC4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.07

#40AEC4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40AEC4

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40AEC4	#FFFFFF	#000000	##000000
##40AEC4	1.00	2.60	8.07	8.07
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.07	21.00	1.00	1.00
##000000	8.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EA8C5

Deuteranopia (green-blind)

#8B9AC4

Tritanopia (blue-blind)

#00B7B5

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40aec4;
/* rgb */ color: rgb(64, 174, 196);
/* oklch */ color: oklch(69.8% 0.103 213.5);

Tailwind

colors: {
  custom: {
    50: '#85c6d5',
    500: '#40aec4',
    950: '#000000',
  },
}

SCSS

$custom: #40aec4;
$custom-light: #85c6d5;
$custom-dark: #000000;

JSON

{
  "hex": "#40aec4",
  "rgb": {
    "r": 64,
    "g": 174,
    "b": 196
  },
  "hsl": {
    "h": 190,
    "s": 52.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.6976,
    "c": 0.10251,
    "h": 213.5
  },
  "luminance": 0.35348
}

Semantic roles & 50–950 ramp

primary

#40AEC4

secondary

#CD9C93

accent

#644CDC

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #40AEC4

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

Preview Lab → · Contrast checker → · Palette generator →