#40ABC5#40ABC5

#40ABC5 is a light, moderate cyan. Relative luminance 0.342; OKLCH L 69.1% C 0.103 H 217.0°. Best body text is #000000 at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#40ABC5
RGB	rgb(64, 171, 197)
HSL	hsl(192, 53%, 51%)
HSV	hsv(192, 68%, 77%)
CMYK	cmyk(67.5%, 13.2%, 0%, 22.7%)
CIE-LAB	lab(65.16, -22.14, -22.21)
CIE-LCH	lch(65.16, 31.36, 225.10°)
OKLab	oklab(69.08% -0.082 -0.0619)
OKLCH	oklch(69.08% 0.103 217)
XYZ	xyz(26.7511, 34.2441, 58.0124)
Luminance	0.3425 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40ABC5 #C55A40

analogous

#40C59C #40ABC5 #4068C5

triadic

#40ABC5 #C540AB #ABC540

tetradic

#40ABC5 #9C40C5 #C55A40 #68C540

square

#40ABC5 #9C40C5 #C55A40 #68C540

split-complementary

#40ABC5 #C54068 #C59C40

monochromatic

#205C6A #2F8499 #40ABC5 #6FC0D3 #9ED4E2

Accessibility & contrast

On white

2.68

#40ABC5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.85

#40ABC5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40ABC5

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40ABC5	#FFFFFF	#000000	##000000
##40ABC5	1.00	2.68	7.85	7.85
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.85	21.00	1.00	1.00
##000000	7.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AA6C6

Deuteranopia (green-blind)

#8798C5

Tritanopia (blue-blind)

#00B4B3

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #40abc5;
/* rgb */ color: rgb(64, 171, 197);
/* oklch */ color: oklch(69.1% 0.103 217.0);

Tailwind

colors: {
  custom: {
    50: '#85c4d6',
    500: '#40abc5',
    950: '#000000',
  },
}

SCSS

$custom: #40abc5;
$custom-light: #85c4d6;
$custom-dark: #000000;

JSON

{
  "hex": "#40abc5",
  "rgb": {
    "r": 64,
    "g": 171,
    "b": 197
  },
  "hsl": {
    "h": 191.729,
    "s": 53.414,
    "l": 51.176
  },
  "oklch": {
    "l": 0.6908,
    "c": 0.10272,
    "h": 217
  },
  "luminance": 0.34247
}

Semantic roles & 50–950 ramp

primary

#40ABC5

secondary

#CE9F93

accent

#674BDD

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #40ABC5

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

Preview Lab → · Contrast checker → · Palette generator →