#40AFDB#40AFDB

#40AFDB is a light, moderate cyan. Relative luminance 0.369; OKLCH L 71.0% C 0.117 H 228.4°. Best body text is #000000 at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#40AFDB
RGB	rgb(64, 175, 219)
HSL	hsl(197, 68%, 55%)
HSV	hsv(197, 71%, 86%)
CMYK	cmyk(70.8%, 20.1%, 0%, 14.1%)
CIE-LAB	lab(67.17, -17.22, -31.26)
CIE-LCH	lch(67.17, 35.69, 241.15°)
OKLab	oklab(70.97% -0.0777 -0.0877)
OKLCH	oklch(70.97% 0.117 228.4)
XYZ	xyz(30.2253, 36.8610, 72.5260)
Luminance	0.3686 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40AFDB #DB6C40

analogous

#40DBB9 #40AFDB #4061DB

triadic

#40AFDB #DB40AF #AFDB40

tetradic

#40AFDB #B940DB #DB6C40 #61DB40

square

#40AFDB #B940DB #DB6C40 #61DB40

split-complementary

#40AFDB #DB4061 #DBB940

monochromatic

#196887 #2390BB #40AFDB #73C5E5 #A7DAEE

Accessibility & contrast

On white

2.51

#40AFDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.37

#40AFDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40AFDB

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40AFDB	#FFFFFF	#000000	##000000
##40AFDB	1.00	2.51	8.37	8.37
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.37	21.00	1.00	1.00
##000000	8.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98ACDD

Deuteranopia (green-blind)

#839DDA

Tritanopia (blue-blind)

#00BBBE

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #40afdb;
/* rgb */ color: rgb(64, 175, 219);
/* oklch */ color: oklch(71.0% 0.117 228.4);

Tailwind

colors: {
  custom: {
    50: '#88c7e6',
    500: '#40afdb',
    950: '#000000',
  },
}

SCSS

$custom: #40afdb;
$custom-light: #88c7e6;
$custom-dark: #000000;

JSON

{
  "hex": "#40afdb",
  "rgb": {
    "r": 64,
    "g": 175,
    "b": 219
  },
  "hsl": {
    "h": 197.032,
    "s": 68.282,
    "l": 55.49
  },
  "oklch": {
    "l": 0.70972,
    "c": 0.11715,
    "h": 228.4
  },
  "luminance": 0.36864
}

Semantic roles & 50–950 ramp

primary

#40AFDB

secondary

#DCAD9B

accent

#6E3DEB

background

#F9FCFE

surface

#F1F8FC

border

#CBD1D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #40AFDB

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

Preview Lab → · Contrast checker → · Palette generator →