#40A3CD#40A3CD

#40A3CD is a light, moderate cyan. Relative luminance 0.317; OKLCH L 67.5% C 0.110 H 229.7°. Best body text is #000000 at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#40A3CD
RGB	rgb(64, 163, 205)
HSL	hsl(198, 59%, 53%)
HSV	hsv(198, 69%, 80%)
CMYK	cmyk(68.8%, 20.5%, 0%, 19.6%)
CIE-LAB	lab(63.09, -15.37, -29.84)
CIE-LCH	lch(63.09, 33.57, 242.75°)
OKLab	oklab(67.52% -0.0708 -0.0836)
OKLCH	oklch(67.52% 0.11 229.7)
XYZ	xyz(26.2266, 31.6892, 62.4802)
Luminance	0.3169 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A3CD #CD6A40

analogous

#40CDB0 #40A3CD #405DCD

triadic

#40A3CD #CD40A3 #A3CD40

tetradic

#40A3CD #B040CD #CD6A40 #5DCD40

square

#40A3CD #B040CD #CD6A40 #5DCD40

split-complementary

#40A3CD #CD405D #CDB040

monochromatic

#1E5B74 #2B80A5 #40A3CD #71BADA #A1D2E6

Accessibility & contrast

On white

2.86

#40A3CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.34

#40A3CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A3CD

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A3CD	#FFFFFF	#000000	##000000
##40A3CD	1.00	2.86	7.34	7.34
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.34	21.00	1.00	1.00
##000000	7.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DA1CF

Deuteranopia (green-blind)

#7A93CC

Tritanopia (blue-blind)

#00AFB1

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #40a3cd;
/* rgb */ color: rgb(64, 163, 205);
/* oklch */ color: oklch(67.5% 0.110 229.7);

Tailwind

colors: {
  custom: {
    50: '#85bedc',
    500: '#40a3cd',
    950: '#000000',
  },
}

SCSS

$custom: #40a3cd;
$custom-light: #85bedc;
$custom-dark: #000000;

JSON

{
  "hex": "#40a3cd",
  "rgb": {
    "r": 64,
    "g": 163,
    "b": 205
  },
  "hsl": {
    "h": 197.872,
    "s": 58.506,
    "l": 52.745
  },
  "oklch": {
    "l": 0.67523,
    "c": 0.10962,
    "h": 229.7
  },
  "luminance": 0.31692
}

Semantic roles & 50–950 ramp

primary

#40A3CD

secondary

#D3A896

accent

#7446E2

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #40A3CD

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

Preview Lab → · Contrast checker → · Palette generator →