#40A4D9#40A4D9

#40A4D9 is a light, vivid cyan. Relative luminance 0.327; OKLCH L 68.3% C 0.120 H 235.7°. Best body text is #000000 at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#40A4D9
RGB	rgb(64, 164, 217)
HSL	hsl(201, 67%, 55%)
HSV	hsv(201, 71%, 85%)
CMYK	cmyk(70.5%, 24.4%, 0%, 14.9%)
CIE-LAB	lab(63.87, -11.95, -35.28)
CIE-LCH	lch(63.87, 37.25, 251.28°)
OKLab	oklab(68.32% -0.0677 -0.0993)
OKLCH	oklch(68.32% 0.12 235.7)
XYZ	xyz(27.9093, 32.6475, 70.4629)
Luminance	0.3265 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A4D9 #D97540

analogous

#40D9C1 #40A4D9 #4058D9

triadic

#40A4D9 #D940A4 #A4D940

tetradic

#40A4D9 #C140D9 #D97540 #58D940

square

#40A4D9 #C140D9 #D97540 #58D940

split-complementary

#40A4D9 #D94058 #D9C140

monochromatic

#1A6084 #2484B7 #40A4D9 #73BCE3 #A6D5ED

Accessibility & contrast

On white

2.79

#40A4D9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.53

#40A4D9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A4D9

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A4D9	#FFFFFF	#000000	##000000
##40A4D9	1.00	2.79	7.53	7.53
#FFFFFF	2.79	1.00	21.00	21.00
#000000	7.53	21.00	1.00	1.00
##000000	7.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BA3DB

Deuteranopia (green-blind)

#7694D8

Tritanopia (blue-blind)

#00B2B6

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #40a4d9;
/* rgb */ color: rgb(64, 164, 217);
/* oklch */ color: oklch(68.3% 0.120 235.7);

Tailwind

colors: {
  custom: {
    50: '#87bee5',
    500: '#40a4d9',
    950: '#000000',
  },
}

SCSS

$custom: #40a4d9;
$custom-light: #87bee5;
$custom-dark: #000000;

JSON

{
  "hex": "#40a4d9",
  "rgb": {
    "r": 64,
    "g": 164,
    "b": 217
  },
  "hsl": {
    "h": 200.784,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.68316,
    "c": 0.12016,
    "h": 235.7
  },
  "luminance": 0.32651
}

Semantic roles & 50–950 ramp

primary

#40A4D9

secondary

#DAB19A

accent

#7A3EEA

background

#F9FBFE

surface

#F1F6FC

border

#CBD0D5

text

#0D1215

muted

#7E8184

Preview Lab

Preview with #40A4D9

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

Preview Lab → · Contrast checker → · Palette generator →