#40AAC3#40AAC3

#40AAC3 is a light, moderate cyan. Relative luminance 0.338; OKLCH L 68.8% C 0.102 H 216.4°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX#40AAC3
RGBrgb(64, 170, 195)
HSLhsl(191, 52%, 51%)
HSVhsv(191, 67%, 76%)
CMYKcmyk(67.2%, 12.8%, 0%, 23.5%)
CIE-LABlab(64.78, -22.25, -21.67)
CIE-LCHlch(64.78, 31.06, 224.25°)
OKLaboklab(68.76% -0.0818 -0.0603)
OKLCHoklch(68.76% 0.102 216.4)
XYZxyz(26.3353, 33.7767, 56.7508)
Luminance0.3378 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40AAC3 #C35940
analogous
#40C39A #40AAC3 #4068C3
triadic
#40AAC3 #C340AA #AAC340
tetradic
#40AAC3 #9A40C3 #C35940 #68C340
square
#40AAC3 #9A40C3 #C35940 #68C340
split-complementary
#40AAC3 #C34068 #C39A40
monochromatic
#215A68 #2F8397 #40AAC3 #6FBFD2 #9DD3E0

Accessibility & contrast

On white

2.71
#40AAC3 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.76
#40AAC3 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40AAC3
7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40AAC3#FFFFFF#000000##000000
##40AAC31.002.717.767.76
#FFFFFF2.711.0021.0021.00
#0000007.7621.001.001.00
##0000007.7621.001.001.00

Color blindness preview

Protanopia (red-blind)
#99A5C4
Deuteranopia (green-blind)
#8797C3
Tritanopia (blue-blind)
#00B3B2
Achromatopsia (no color)
#9D9D9D

Design tokens & code

CSS
--color: #40aac3;
/* rgb */ color: rgb(64, 170, 195);
/* oklch */ color: oklch(68.8% 0.102 216.4);
Tailwind
colors: {
  custom: {
    50: '#85c3d5',
    500: '#40aac3',
    950: '#000000',
  },
}
SCSS
$custom: #40aac3;
$custom-light: #85c3d5;
$custom-dark: #000000;
JSON
{
  "hex": "#40aac3",
  "rgb": {
    "r": 64,
    "g": 170,
    "b": 195
  },
  "hsl": {
    "h": 191.45,
    "s": 52.191,
    "l": 50.784
  },
  "oklch": {
    "l": 0.68758,
    "c": 0.10162,
    "h": 216.4
  },
  "luminance": 0.3378
}

Semantic roles & 50–950 ramp

primary
#40AAC3
secondary
#CC9D92
accent
#684CDC
background
#F8FCFD
surface
#F0F8FA
border
#CBD1D3
text
#0C1214
muted
#7D8183

Preview Lab

Preview with #40AAC3

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

Preview Lab → · Contrast checker → · Palette generator →

#40AAC3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva