#409DB1#409DB1

#409DB1 is a light, moderate cyan. Relative luminance 0.284; OKLCH L 64.9% C 0.091 H 214.3°. Best body text is #000000 at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#409DB1
RGB	rgb(64, 157, 177)
HSL	hsl(191, 47%, 47%)
HSV	hsv(191, 64%, 69%)
CMYK	cmyk(63.8%, 11.3%, 0%, 30.6%)
CIE-LAB	lab(60.23, -21.09, -18.53)
CIE-LCH	lch(60.23, 28.07, 221.32°)
OKLab	oklab(64.88% -0.0754 -0.0515)
OKLCH	oklch(64.88% 0.091 214.3)
XYZ	xyz(22.1039, 28.3759, 45.8986)
Luminance	0.2838 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#409DB1 #B15440

analogous

#40B18C #409DB1 #4065B1

triadic

#409DB1 #B1409D #9DB140

tetradic

#409DB1 #8C40B1 #B15440 #65B140

square

#409DB1 #8C40B1 #B15440 #65B140

split-complementary

#409DB1 #B14065 #B18C40

monochromatic

#1F4D57 #307584 #409DB1 #66B7C8 #93CCD8

Accessibility & contrast

On white

3.15

#409DB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.68

#409DB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #409DB1

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##409DB1	#FFFFFF	#000000	##000000
##409DB1	1.00	3.15	6.68	6.68
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.68	21.00	1.00	1.00
##000000	6.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F98B2

Deuteranopia (green-blind)

#7E8CB1

Tritanopia (blue-blind)

#00A5A3

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #409db1;
/* rgb */ color: rgb(64, 157, 177);
/* oklch */ color: oklch(64.9% 0.091 214.3);

Tailwind

colors: {
  custom: {
    50: '#81bac8',
    500: '#409db1',
    950: '#000000',
  },
}

SCSS

$custom: #409db1;
$custom-light: #81bac8;
$custom-dark: #000000;

JSON

{
  "hex": "#409db1",
  "rgb": {
    "r": 64,
    "g": 157,
    "b": 177
  },
  "hsl": {
    "h": 190.619,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.64883,
    "c": 0.09128,
    "h": 214.3
  },
  "luminance": 0.28378
}

Semantic roles & 50–950 ramp

primary

#409DB1

secondary

#C39489

accent

#6951D7

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #409DB1

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

Preview Lab → · Contrast checker → · Palette generator →