#40A9D0#40A9D0

#40A9D0 is a light, moderate cyan. Relative luminance 0.340; OKLCH L 69.1% C 0.110 H 226.6°. Best body text is #000000 at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#40A9D0
RGB	rgb(64, 169, 208)
HSL	hsl(196, 61%, 53%)
HSV	hsv(196, 69%, 82%)
CMYK	cmyk(69.2%, 18.8%, 0%, 18.4%)
CIE-LAB	lab(64.98, -17.60, -28.59)
CIE-LCH	lch(64.98, 33.57, 238.38°)
OKLab	oklab(69.07% -0.0758 -0.08)
OKLCH	oklch(69.07% 0.11 226.6)
XYZ	xyz(27.6829, 34.0169, 64.7692)
Luminance	0.3402 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A9D0 #D06740

analogous

#40D0AF #40A9D0 #4061D0

triadic

#40A9D0 #D040A9 #A9D040

tetradic

#40A9D0 #AF40D0 #D06740 #61D040

square

#40A9D0 #AF40D0 #D06740 #61D040

split-complementary

#40A9D0 #D04061 #D0AF40

monochromatic

#1E6078 #2A87A9 #40A9D0 #71BFDC #A2D5E8

Accessibility & contrast

On white

2.69

#40A9D0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.80

#40A9D0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A9D0

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A9D0	#FFFFFF	#000000	##000000
##40A9D0	1.00	2.69	7.80	7.80
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.80	21.00	1.00	1.00
##000000	7.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94A6D2

Deuteranopia (green-blind)

#8097D0

Tritanopia (blue-blind)

#00B4B6

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #40a9d0;
/* rgb */ color: rgb(64, 169, 208);
/* oklch */ color: oklch(69.1% 0.110 226.6);

Tailwind

colors: {
  custom: {
    50: '#86c2de',
    500: '#40a9d0',
    950: '#000000',
  },
}

SCSS

$custom: #40a9d0;
$custom-light: #86c2de;
$custom-dark: #000000;

JSON

{
  "hex": "#40a9d0",
  "rgb": {
    "r": 64,
    "g": 169,
    "b": 208
  },
  "hsl": {
    "h": 196.25,
    "s": 60.504,
    "l": 53.333
  },
  "oklch": {
    "l": 0.69073,
    "c": 0.11022,
    "h": 226.6
  },
  "luminance": 0.3402
}

Semantic roles & 50–950 ramp

primary

#40A9D0

secondary

#D5A897

accent

#6F44E4

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #40A9D0

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

Preview Lab → · Contrast checker → · Palette generator →