#40AFD3#40AFD3

#40AFD3 is a light, moderate cyan. Relative luminance 0.365; OKLCH L 70.6% C 0.111 H 223.5°. Best body text is #000000 at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#40AFD3
RGB	rgb(64, 175, 211)
HSL	hsl(195, 63%, 54%)
HSV	hsv(195, 70%, 83%)
CMYK	cmyk(69.7%, 17.1%, 0%, 17.3%)
CIE-LAB	lab(66.86, -19.80, -27.34)
CIE-LCH	lch(66.86, 33.75, 234.09°)
OKLab	oklab(70.62% -0.0806 -0.0764)
OKLCH	oklch(70.62% 0.111 223.5)
XYZ	xyz(29.1974, 36.4498, 67.1121)
Luminance	0.3645 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40AFD3 #D36440

analogous

#40D3AE #40AFD3 #4066D3

triadic

#40AFD3 #D340AF #AFD340

tetradic

#40AFD3 #AE40D3 #D36440 #66D340

square

#40AFD3 #AE40D3 #D36440 #66D340

split-complementary

#40AFD3 #D34066 #D3AE40

monochromatic

#1D657C #288DAE #40AFD3 #72C4DE #A3D9EA

Accessibility & contrast

On white

2.53

#40AFD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.29

#40AFD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40AFD3

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40AFD3	#FFFFFF	#000000	##000000
##40AFD3	1.00	2.53	8.29	8.29
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.29	21.00	1.00	1.00
##000000	8.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BABD5

Deuteranopia (green-blind)

#869CD3

Tritanopia (blue-blind)

#00BABB

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #40afd3;
/* rgb */ color: rgb(64, 175, 211);
/* oklch */ color: oklch(70.6% 0.111 223.5);

Tailwind

colors: {
  custom: {
    50: '#87c7e0',
    500: '#40afd3',
    950: '#000000',
  },
}

SCSS

$custom: #40afd3;
$custom-light: #87c7e0;
$custom-dark: #000000;

JSON

{
  "hex": "#40afd3",
  "rgb": {
    "r": 64,
    "g": 175,
    "b": 211
  },
  "hsl": {
    "h": 194.694,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.70621,
    "c": 0.11112,
    "h": 223.5
  },
  "luminance": 0.36453
}

Semantic roles & 50–950 ramp

primary

#40AFD3

secondary

#D7A798

accent

#6A42E6

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40AFD3

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

Preview Lab → · Contrast checker → · Palette generator →