#40A9CC#40A9CC

#40A9CC is a light, moderate cyan. Relative luminance 0.338; OKLCH L 68.9% C 0.107 H 223.9°. Best body text is #000000 at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#40A9CC
RGB	rgb(64, 169, 204)
HSL	hsl(195, 58%, 53%)
HSV	hsv(195, 69%, 80%)
CMYK	cmyk(68.6%, 17.2%, 0%, 20%)
CIE-LAB	lab(64.82, -18.89, -26.61)
CIE-LCH	lch(64.82, 32.63, 234.63°)
OKLab	oklab(68.9% -0.0773 -0.0744)
OKLCH	oklch(68.9% 0.107 223.9)
XYZ	xyz(27.1970, 33.8225, 62.2101)
Luminance	0.3383 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A9CC #CC6340

analogous

#40CCA9 #40A9CC #4063CC

triadic

#40A9CC #CC40A9 #A9CC40

tetradic

#40A9CC #A940CC #CC6340 #63CC40

square

#40A9CC #A940CC #CC6340 #63CC40

split-complementary

#40A9CC #CC4063 #CCA940

monochromatic

#1F5E73 #2C85A3 #40A9CC #70BFD9 #A1D4E6

Accessibility & contrast

On white

2.70

#40A9CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.77

#40A9CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A9CC

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A9CC	#FFFFFF	#000000	##000000
##40A9CC	1.00	2.70	7.77	7.77
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.77	21.00	1.00	1.00
##000000	7.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95A5CE

Deuteranopia (green-blind)

#8297CC

Tritanopia (blue-blind)

#00B4B4

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #40a9cc;
/* rgb */ color: rgb(64, 169, 204);
/* oklch */ color: oklch(68.9% 0.107 223.9);

Tailwind

colors: {
  custom: {
    50: '#86c2db',
    500: '#40a9cc',
    950: '#000000',
  },
}

SCSS

$custom: #40a9cc;
$custom-light: #86c2db;
$custom-dark: #000000;

JSON

{
  "hex": "#40a9cc",
  "rgb": {
    "r": 64,
    "g": 169,
    "b": 204
  },
  "hsl": {
    "h": 195,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.68898,
    "c": 0.10725,
    "h": 223.9
  },
  "luminance": 0.33826
}

Semantic roles & 50–950 ramp

primary

#40A9CC

secondary

#D2A595

accent

#6D47E1

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #40A9CC

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

Preview Lab → · Contrast checker → · Palette generator →