#409DB4#409DB4

#409DB4 is a light, moderate cyan. Relative luminance 0.285; OKLCH L 65.0% C 0.093 H 217.0°. Best body text is #000000 at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#409DB4
RGB	rgb(64, 157, 180)
HSL	hsl(192, 48%, 48%)
HSV	hsv(192, 64%, 71%)
CMYK	cmyk(64.4%, 12.8%, 0%, 29.4%)
CIE-LAB	lab(60.33, -20.16, -20.06)
CIE-LCH	lch(60.33, 28.44, 224.87°)
OKLab	oklab(65.01% -0.0741 -0.0558)
OKLCH	oklch(65.01% 0.093 217)
XYZ	xyz(22.4062, 28.4968, 47.4908)
Luminance	0.2850 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#409DB4 #B45740

analogous

#40B491 #409DB4 #4063B4

triadic

#409DB4 #B4409D #9DB440

tetradic

#409DB4 #9140B4 #B45740 #63B440

square

#409DB4 #9140B4 #B45740 #63B440

split-complementary

#409DB4 #B44063 #B49140

monochromatic

#204E5A #307687 #409DB4 #68B6C9 #95CCD9

Accessibility & contrast

On white

3.13

#409DB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.70

#409DB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #409DB4

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##409DB4	#FFFFFF	#000000	##000000
##409DB4	1.00	3.13	6.70	6.70
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.70	21.00	1.00	1.00
##000000	6.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E98B5

Deuteranopia (green-blind)

#7D8CB4

Tritanopia (blue-blind)

#00A5A4

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #409db4;
/* rgb */ color: rgb(64, 157, 180);
/* oklch */ color: oklch(65.0% 0.093 217.0);

Tailwind

colors: {
  custom: {
    50: '#82baca',
    500: '#409db4',
    950: '#000000',
  },
}

SCSS

$custom: #409db4;
$custom-light: #82baca;
$custom-dark: #000000;

JSON

{
  "hex": "#409db4",
  "rgb": {
    "r": 64,
    "g": 157,
    "b": 180
  },
  "hsl": {
    "h": 191.897,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.65005,
    "c": 0.09281,
    "h": 217
  },
  "luminance": 0.28499
}

Semantic roles & 50–950 ramp

primary

#409DB4

secondary

#C5968B

accent

#6B51D7

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #409DB4

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

Preview Lab → · Contrast checker → · Palette generator →