#40A5CF#40A5CF

#40A5CF is a light, moderate cyan. Relative luminance 0.325; OKLCH L 68.1% C 0.111 H 229.3°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#40A5CF
RGB	rgb(64, 165, 207)
HSL	hsl(198, 60%, 53%)
HSV	hsv(198, 69%, 81%)
CMYK	cmyk(69.1%, 20.3%, 0%, 18.8%)
CIE-LAB	lab(63.76, -15.79, -29.92)
CIE-LCH	lch(63.76, 33.83, 242.17°)
OKLab	oklab(68.08% -0.0721 -0.0839)
OKLCH	oklch(68.08% 0.111 229.3)
XYZ	xyz(26.8275, 32.5023, 63.8791)
Luminance	0.3251 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A5CF #CF6A40

analogous

#40CFB1 #40A5CF #405DCF

triadic

#40A5CF #CF40A5 #A5CF40

tetradic

#40A5CF #B140CF #CF6A40 #5DCF40

square

#40A5CF #B140CF #CF6A40 #5DCF40

split-complementary

#40A5CF #CF405D #CFB140

monochromatic

#1E5D77 #2A83A8 #40A5CF #71BCDB #A2D3E8

Accessibility & contrast

On white

2.80

#40A5CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#40A5CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A5CF

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A5CF	#FFFFFF	#000000	##000000
##40A5CF	1.00	2.80	7.50	7.50
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.50	21.00	1.00	1.00
##000000	7.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8FA2D1

Deuteranopia (green-blind)

#7C94CE

Tritanopia (blue-blind)

#00B1B3

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #40a5cf;
/* rgb */ color: rgb(64, 165, 207);
/* oklch */ color: oklch(68.1% 0.111 229.3);

Tailwind

colors: {
  custom: {
    50: '#86bfdd',
    500: '#40a5cf',
    950: '#000000',
  },
}

SCSS

$custom: #40a5cf;
$custom-light: #86bfdd;
$custom-dark: #000000;

JSON

{
  "hex": "#40a5cf",
  "rgb": {
    "r": 64,
    "g": 165,
    "b": 207
  },
  "hsl": {
    "h": 197.622,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.68085,
    "c": 0.11062,
    "h": 229.3
  },
  "luminance": 0.32505
}

Semantic roles & 50–950 ramp

primary

#40A5CF

secondary

#D4A997

accent

#7345E3

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #40A5CF

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

Preview Lab → · Contrast checker → · Palette generator →