#40A6D9#40A6D9

#40A6D9 is a light, moderate cyan. Relative luminance 0.334; OKLCH L 68.8% C 0.119 H 234.2°. Best body text is #000000 at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#40A6D9
RGB	rgb(64, 166, 217)
HSL	hsl(200, 67%, 55%)
HSV	hsv(200, 71%, 85%)
CMYK	cmyk(70.5%, 23.5%, 0%, 14.9%)
CIE-LAB	lab(64.46, -13.05, -34.37)
CIE-LCH	lch(64.46, 36.76, 249.22°)
OKLab	oklab(68.78% -0.0696 -0.0967)
OKLCH	oklch(68.78% 0.119 234.2)
XYZ	xyz(28.2700, 33.3690, 70.5831)
Luminance	0.3337 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A6D9 #D97340

analogous

#40D9BF #40A6D9 #405AD9

triadic

#40A6D9 #D940A6 #A6D940

tetradic

#40A6D9 #BF40D9 #D97340 #5AD940

square

#40A6D9 #BF40D9 #D97340 #5AD940

split-complementary

#40A6D9 #D9405A #D9BF40

monochromatic

#1A6184 #2486B7 #40A6D9 #73BEE3 #A6D6ED

Accessibility & contrast

On white

2.74

#40A6D9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.67

#40A6D9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A6D9

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A6D9	#FFFFFF	#000000	##000000
##40A6D9	1.00	2.74	7.67	7.67
#FFFFFF	2.74	1.00	21.00	21.00
#000000	7.67	21.00	1.00	1.00
##000000	7.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DA5DB

Deuteranopia (green-blind)

#7896D8

Tritanopia (blue-blind)

#00B3B7

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #40a6d9;
/* rgb */ color: rgb(64, 166, 217);
/* oklch */ color: oklch(68.8% 0.119 234.2);

Tailwind

colors: {
  custom: {
    50: '#87c0e5',
    500: '#40a6d9',
    950: '#000000',
  },
}

SCSS

$custom: #40a6d9;
$custom-light: #87c0e5;
$custom-dark: #000000;

JSON

{
  "hex": "#40a6d9",
  "rgb": {
    "r": 64,
    "g": 166,
    "b": 217
  },
  "hsl": {
    "h": 200,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.6878,
    "c": 0.11912,
    "h": 234.2
  },
  "luminance": 0.33372
}

Semantic roles & 50–950 ramp

primary

#40A6D9

secondary

#DAB09A

accent

#773EEA

background

#F9FBFE

surface

#F1F7FC

border

#CBD0D5

text

#0D1215

muted

#7E8184

Preview Lab

Preview with #40A6D9

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

Preview Lab → · Contrast checker → · Palette generator →