#409BB1#409BB1

#409BB1 is a light, moderate cyan. Relative luminance 0.277; OKLCH L 64.4% C 0.091 H 216.5°. Best body text is #000000 at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#409BB1
RGB	rgb(64, 155, 177)
HSL	hsl(192, 47%, 47%)
HSV	hsv(192, 64%, 69%)
CMYK	cmyk(63.8%, 12.4%, 0%, 30.6%)
CIE-LAB	lab(59.62, -20.04, -19.46)
CIE-LCH	lch(59.62, 27.93, 224.16°)
OKLab	oklab(64.4% -0.0732 -0.0541)
OKLCH	oklch(64.4% 0.091 216.5)
XYZ	xyz(21.7683, 27.7047, 45.7868)
Luminance	0.2771 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#409BB1 #B15640

analogous

#40B18E #409BB1 #4063B1

triadic

#409BB1 #B1409B #9BB140

tetradic

#409BB1 #8E40B1 #B15640 #63B140

square

#409BB1 #8E40B1 #B15640 #63B140

split-complementary

#409BB1 #B14063 #B18E40

monochromatic

#1F4C57 #307484 #409BB1 #66B5C8 #93CBD8

Accessibility & contrast

On white

3.21

#409BB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.54

#409BB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #409BB1

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##409BB1	#FFFFFF	#000000	##000000
##409BB1	1.00	3.21	6.54	6.54
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.54	21.00	1.00	1.00
##000000	6.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C96B2

Deuteranopia (green-blind)

#7C8AB1

Tritanopia (blue-blind)

#00A3A2

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #409bb1;
/* rgb */ color: rgb(64, 155, 177);
/* oklch */ color: oklch(64.4% 0.091 216.5);

Tailwind

colors: {
  custom: {
    50: '#81b8c8',
    500: '#409bb1',
    950: '#000000',
  },
}

SCSS

$custom: #409bb1;
$custom-light: #81b8c8;
$custom-dark: #000000;

JSON

{
  "hex": "#409bb1",
  "rgb": {
    "r": 64,
    "g": 155,
    "b": 177
  },
  "hsl": {
    "h": 191.681,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.64396,
    "c": 0.09104,
    "h": 216.5
  },
  "luminance": 0.27707
}

Semantic roles & 50–950 ramp

primary

#409BB1

secondary

#C39589

accent

#6B51D7

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #409BB1

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

Preview Lab → · Contrast checker → · Palette generator →