#40A4CF#40A4CF

#40A4CF is a light, moderate cyan. Relative luminance 0.321; OKLCH L 67.8% C 0.111 H 230.1°. Best body text is #000000 at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#40A4CF
RGB	rgb(64, 164, 207)
HSL	hsl(198, 60%, 53%)
HSV	hsv(198, 69%, 81%)
CMYK	cmyk(69.1%, 20.8%, 0%, 18.8%)
CIE-LAB	lab(63.46, -15.26, -30.37)
CIE-LCH	lch(63.46, 33.99, 243.33°)
OKLab	oklab(67.85% -0.0711 -0.0852)
OKLCH	oklch(67.85% 0.111 230.1)
XYZ	xyz(26.6478, 32.1429, 63.8192)
Luminance	0.3215 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A4CF #CF6B40

analogous

#40CFB2 #40A4CF #405CCF

triadic

#40A4CF #CF40A4 #A4CF40

tetradic

#40A4CF #B240CF #CF6B40 #5CCF40

square

#40A4CF #B240CF #CF6B40 #5CCF40

split-complementary

#40A4CF #CF405C #CFB240

monochromatic

#1E5C77 #2A82A8 #40A4CF #71BBDB #A2D3E8

Accessibility & contrast

On white

2.83

#40A4CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.43

#40A4CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A4CF

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A4CF	#FFFFFF	#000000	##000000
##40A4CF	1.00	2.83	7.43	7.43
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.43	21.00	1.00	1.00
##000000	7.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8EA2D1

Deuteranopia (green-blind)

#7A93CE

Tritanopia (blue-blind)

#00B0B2

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #40a4cf;
/* rgb */ color: rgb(64, 164, 207);
/* oklch */ color: oklch(67.8% 0.111 230.1);

Tailwind

colors: {
  custom: {
    50: '#86bfdd',
    500: '#40a4cf',
    950: '#000000',
  },
}

SCSS

$custom: #40a4cf;
$custom-light: #86bfdd;
$custom-dark: #000000;

JSON

{
  "hex": "#40a4cf",
  "rgb": {
    "r": 64,
    "g": 164,
    "b": 207
  },
  "hsl": {
    "h": 198.042,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.6785,
    "c": 0.11097,
    "h": 230.1
  },
  "luminance": 0.32146
}

Semantic roles & 50–950 ramp

primary

#40A4CF

secondary

#D4A997

accent

#7445E3

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #40A4CF

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

Preview Lab → · Contrast checker → · Palette generator →