#409CB0#409CB0

#409CB0 is a light, moderate cyan. Relative luminance 0.280; OKLCH L 64.6% C 0.091 H 214.5°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#409CB0
RGB	rgb(64, 156, 176)
HSL	hsl(191, 47%, 47%)
HSV	hsv(191, 64%, 69%)
CMYK	cmyk(63.6%, 11.4%, 0%, 31%)
CIE-LAB	lab(59.89, -20.87, -18.49)
CIE-LCH	lch(59.89, 27.88, 221.53°)
OKLab	oklab(64.6% -0.0747 -0.0514)
OKLCH	oklch(64.6% 0.091 214.5)
XYZ	xyz(21.8361, 27.9992, 45.3195)
Luminance	0.2800 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#409CB0 #B05440

analogous

#40B08C #409CB0 #4064B0

triadic

#409CB0 #B0409C #9CB040

tetradic

#409CB0 #8C40B0 #B05440 #64B040

square

#409CB0 #8C40B0 #B05440 #64B040

split-complementary

#409CB0 #B04064 #B08C40

monochromatic

#1F4C56 #307483 #409CB0 #66B6C7 #93CBD8

Accessibility & contrast

On white

3.18

#409CB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#409CB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #409CB0

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##409CB0	#FFFFFF	#000000	##000000
##409CB0	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E97B1

Deuteranopia (green-blind)

#7D8BB0

Tritanopia (blue-blind)

#00A4A2

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #409cb0;
/* rgb */ color: rgb(64, 156, 176);
/* oklch */ color: oklch(64.6% 0.091 214.5);

Tailwind

colors: {
  custom: {
    50: '#81b9c7',
    500: '#409cb0',
    950: '#000000',
  },
}

SCSS

$custom: #409cb0;
$custom-light: #81b9c7;
$custom-dark: #000000;

JSON

{
  "hex": "#409cb0",
  "rgb": {
    "r": 64,
    "g": 156,
    "b": 176
  },
  "hsl": {
    "h": 190.714,
    "s": 46.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.64599,
    "c": 0.09065,
    "h": 214.5
  },
  "luminance": 0.28002
}

Semantic roles & 50–950 ramp

primary

#409CB0

secondary

#C39389

accent

#6951D6

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #409CB0

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

Preview Lab → · Contrast checker → · Palette generator →