#40A3C8#40A3C8

#40A3C8 is a light, moderate cyan. Relative luminance 0.315; OKLCH L 67.3% C 0.106 H 226.5°. Best body text is #000000 at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#40A3C8
RGB	rgb(64, 163, 200)
HSL	hsl(196, 55%, 52%)
HSV	hsv(196, 68%, 78%)
CMYK	cmyk(68%, 18.5%, 0%, 21.6%)
CIE-LAB	lab(62.89, -16.99, -27.36)
CIE-LCH	lch(62.89, 32.21, 238.16°)
OKLab	oklab(67.3% -0.0727 -0.0766)
OKLCH	oklch(67.3% 0.106 226.5)
XYZ	xyz(25.6327, 31.4517, 59.3523)
Luminance	0.3145 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A3C8 #C86540

analogous

#40C8A9 #40A3C8 #405FC8

triadic

#40A3C8 #C840A3 #A3C840

tetradic

#40A3C8 #A940C8 #C86540 #5FC840

square

#40A3C8 #A940C8 #C86540 #5FC840

split-complementary

#40A3C8 #C8405F #C8A940

monochromatic

#20596E #2D7F9D #40A3C8 #70BAD6 #9FD1E3

Accessibility & contrast

On white

2.88

#40A3C8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.29

#40A3C8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A3C8

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A3C8	#FFFFFF	#000000	##000000
##40A3C8	1.00	2.88	7.29	7.29
#FFFFFF	2.88	1.00	21.00	21.00
#000000	7.29	21.00	1.00	1.00
##000000	7.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8FA0CA

Deuteranopia (green-blind)

#7C92C8

Tritanopia (blue-blind)

#00AEAF

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #40a3c8;
/* rgb */ color: rgb(64, 163, 200);
/* oklch */ color: oklch(67.3% 0.106 226.5);

Tailwind

colors: {
  custom: {
    50: '#85bed8',
    500: '#40a3c8',
    950: '#000000',
  },
}

SCSS

$custom: #40a3c8;
$custom-light: #85bed8;
$custom-dark: #000000;

JSON

{
  "hex": "#40a3c8",
  "rgb": {
    "r": 64,
    "g": 163,
    "b": 200
  },
  "hsl": {
    "h": 196.324,
    "s": 55.285,
    "l": 51.765
  },
  "oklch": {
    "l": 0.673,
    "c": 0.10556,
    "h": 226.5
  },
  "luminance": 0.31455
}

Semantic roles & 50–950 ramp

primary

#40A3C8

secondary

#D0A494

accent

#7249DF

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #40A3C8

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

Preview Lab → · Contrast checker → · Palette generator →