#40A1D9#40A1D9

#40A1D9 is a light, vivid cyan. Relative luminance 0.316; OKLCH L 67.6% C 0.122 H 237.9°. Best body text is #000000 at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#40A1D9
RGB	rgb(64, 161, 217)
HSL	hsl(202, 67%, 55%)
HSV	hsv(202, 71%, 85%)
CMYK	cmyk(70.5%, 25.8%, 0%, 14.9%)
CIE-LAB	lab(63.00, -10.30, -36.64)
CIE-LCH	lch(63.00, 38.06, 254.30°)
OKLab	oklab(67.62% -0.0647 -0.1033)
OKLCH	oklch(67.62% 0.122 237.9)
XYZ	xyz(27.3787, 31.5864, 70.2860)
Luminance	0.3159 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A1D9 #D97840

analogous

#40D9C5 #40A1D9 #4054D9

triadic

#40A1D9 #D940A1 #A1D940

tetradic

#40A1D9 #C540D9 #D97840 #54D940

square

#40A1D9 #C540D9 #D97840 #54D940

split-complementary

#40A1D9 #D94054 #D9C540

monochromatic

#1A5D84 #2482B7 #40A1D9 #73BAE3 #A6D3ED

Accessibility & contrast

On white

2.87

#40A1D9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.32

#40A1D9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A1D9

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A1D9	#FFFFFF	#000000	##000000
##40A1D9	1.00	2.87	7.32	7.32
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.32	21.00	1.00	1.00
##000000	7.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#87A1DC

Deuteranopia (green-blind)

#7292D8

Tritanopia (blue-blind)

#00AFB4

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #40a1d9;
/* rgb */ color: rgb(64, 161, 217);
/* oklch */ color: oklch(67.6% 0.122 237.9);

Tailwind

colors: {
  custom: {
    50: '#87bce5',
    500: '#40a1d9',
    950: '#000000',
  },
}

SCSS

$custom: #40a1d9;
$custom-light: #87bce5;
$custom-dark: #000000;

JSON

{
  "hex": "#40a1d9",
  "rgb": {
    "r": 64,
    "g": 161,
    "b": 217
  },
  "hsl": {
    "h": 201.961,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.6762,
    "c": 0.12188,
    "h": 237.9
  },
  "luminance": 0.31589
}

Semantic roles & 50–950 ramp

primary

#40A1D9

secondary

#DAB29A

accent

#7D3EEA

background

#F9FBFE

surface

#F1F6FC

border

#CBD0D5

text

#0D1215

muted

#7E8184

Preview Lab

Preview with #40A1D9

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

Preview Lab → · Contrast checker → · Palette generator →