#409DB3#409DB3

#409DB3 is a light, moderate cyan. Relative luminance 0.285; OKLCH L 65.0% C 0.092 H 216.1°. Best body text is #000000 at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#409DB3
RGB	rgb(64, 157, 179)
HSL	hsl(191, 47%, 48%)
HSV	hsv(191, 64%, 70%)
CMYK	cmyk(64.2%, 12.3%, 0%, 29.8%)
CIE-LAB	lab(60.30, -20.47, -19.55)
CIE-LCH	lch(60.30, 28.31, 223.69°)
OKLab	oklab(64.96% -0.0745 -0.0544)
OKLCH	oklch(64.96% 0.092 216.1)
XYZ	xyz(22.3047, 28.4562, 46.9562)
Luminance	0.2846 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#409DB3 #B35640

analogous

#40B38F #409DB3 #4064B3

triadic

#409DB3 #B3409D #9DB340

tetradic

#409DB3 #8F40B3 #B35640 #64B340

square

#409DB3 #8F40B3 #B35640 #64B340

split-complementary

#409DB3 #B34064 #B38F40

monochromatic

#204E59 #307586 #409DB3 #67B6C9 #94CCD9

Accessibility & contrast

On white

3.14

#409DB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.69

#409DB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #409DB3

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##409DB3	#FFFFFF	#000000	##000000
##409DB3	1.00	3.14	6.69	6.69
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.69	21.00	1.00	1.00
##000000	6.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E98B4

Deuteranopia (green-blind)

#7D8CB3

Tritanopia (blue-blind)

#00A5A4

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #409db3;
/* rgb */ color: rgb(64, 157, 179);
/* oklch */ color: oklch(65.0% 0.092 216.1);

Tailwind

colors: {
  custom: {
    50: '#82bac9',
    500: '#409db3',
    950: '#000000',
  },
}

SCSS

$custom: #409db3;
$custom-light: #82bac9;
$custom-dark: #000000;

JSON

{
  "hex": "#409db3",
  "rgb": {
    "r": 64,
    "g": 157,
    "b": 179
  },
  "hsl": {
    "h": 191.478,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.64964,
    "c": 0.09227,
    "h": 216.1
  },
  "luminance": 0.28459
}

Semantic roles & 50–950 ramp

primary

#409DB3

secondary

#C4958A

accent

#6B51D7

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #409DB3

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

Preview Lab → · Contrast checker → · Palette generator →