#40AFD9#40AFD9

#40AFD9 is a light, moderate cyan. Relative luminance 0.368; OKLCH L 70.9% C 0.116 H 227.3°. Best body text is #000000 at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#40AFD9
RGB	rgb(64, 175, 217)
HSL	hsl(196, 67%, 55%)
HSV	hsv(196, 71%, 85%)
CMYK	cmyk(70.5%, 19.4%, 0%, 14.9%)
CIE-LAB	lab(67.09, -17.87, -30.29)
CIE-LCH	lch(67.09, 35.17, 239.46°)
OKLab	oklab(70.88% -0.0784 -0.0849)
OKLCH	oklch(70.88% 0.116 227.3)
XYZ	xyz(29.9636, 36.7563, 71.1477)
Luminance	0.3676 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40AFD9 #D96A40

analogous

#40D9B7 #40AFD9 #4062D9

triadic

#40AFD9 #D940AF #AFD940

tetradic

#40AFD9 #B740D9 #D96A40 #62D940

square

#40AFD9 #B740D9 #D96A40 #62D940

split-complementary

#40AFD9 #D94062 #D9B740

monochromatic

#1A6784 #248FB7 #40AFD9 #73C4E3 #A6DAED

Accessibility & contrast

On white

2.51

#40AFD9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.35

#40AFD9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40AFD9

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40AFD9	#FFFFFF	#000000	##000000
##40AFD9	1.00	2.51	8.35	8.35
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.35	21.00	1.00	1.00
##000000	8.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99ACDB

Deuteranopia (green-blind)

#849DD8

Tritanopia (blue-blind)

#00BBBD

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #40afd9;
/* rgb */ color: rgb(64, 175, 217);
/* oklch */ color: oklch(70.9% 0.116 227.3);

Tailwind

colors: {
  custom: {
    50: '#88c7e5',
    500: '#40afd9',
    950: '#000000',
  },
}

SCSS

$custom: #40afd9;
$custom-light: #88c7e5;
$custom-dark: #000000;

JSON

{
  "hex": "#40afd9",
  "rgb": {
    "r": 64,
    "g": 175,
    "b": 217
  },
  "hsl": {
    "h": 196.471,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.70883,
    "c": 0.11555,
    "h": 227.3
  },
  "luminance": 0.3676
}

Semantic roles & 50–950 ramp

primary

#40AFD9

secondary

#DAAC9A

accent

#6D3EEA

background

#F9FCFE

surface

#F1F8FC

border

#CBD1D5

text

#0D1315

muted

#7E8284

Preview Lab

Preview with #40AFD9

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

Preview Lab → · Contrast checker → · Palette generator →