#40A4D0#40A4D0

#40A4D0 is a light, moderate cyan. Relative luminance 0.322; OKLCH L 67.9% C 0.112 H 230.7°. Best body text is #000000 at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#40A4D0
RGB	rgb(64, 164, 208)
HSL	hsl(198, 61%, 53%)
HSV	hsv(198, 69%, 82%)
CMYK	cmyk(69.2%, 21.2%, 0%, 18.4%)
CIE-LAB	lab(63.50, -14.93, -30.87)
CIE-LCH	lch(63.50, 34.29, 244.19°)
OKLab	oklab(67.9% -0.0708 -0.0866)
OKLCH	oklch(67.9% 0.112 230.7)
XYZ	xyz(26.7704, 32.1920, 64.4651)
Luminance	0.3220 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A4D0 #D06C40

analogous

#40D0B4 #40A4D0 #405CD0

triadic

#40A4D0 #D040A4 #A4D040

tetradic

#40A4D0 #B440D0 #D06C40 #5CD040

square

#40A4D0 #B440D0 #D06C40 #5CD040

split-complementary

#40A4D0 #D0405C #D0B440

monochromatic

#1E5C78 #2A82A9 #40A4D0 #71BBDC #A2D3E8

Accessibility & contrast

On white

2.82

#40A4D0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.44

#40A4D0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A4D0

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A4D0	#FFFFFF	#000000	##000000
##40A4D0	1.00	2.82	7.44	7.44
#FFFFFF	2.82	1.00	21.00	21.00
#000000	7.44	21.00	1.00	1.00
##000000	7.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8EA2D2

Deuteranopia (green-blind)

#7A93CF

Tritanopia (blue-blind)

#00B0B3

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #40a4d0;
/* rgb */ color: rgb(64, 164, 208);
/* oklch */ color: oklch(67.9% 0.112 230.7);

Tailwind

colors: {
  custom: {
    50: '#86bfde',
    500: '#40a4d0',
    950: '#000000',
  },
}

SCSS

$custom: #40a4d0;
$custom-light: #86bfde;
$custom-dark: #000000;

JSON

{
  "hex": "#40a4d0",
  "rgb": {
    "r": 64,
    "g": 164,
    "b": 208
  },
  "hsl": {
    "h": 198.333,
    "s": 60.504,
    "l": 53.333
  },
  "oklch": {
    "l": 0.67895,
    "c": 0.11184,
    "h": 230.7
  },
  "luminance": 0.32195
}

Semantic roles & 50–950 ramp

primary

#40A4D0

secondary

#D5AA97

accent

#7544E4

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #40A4D0

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

Preview Lab → · Contrast checker → · Palette generator →