#409BBF#409BBF

#409BBF is a light, moderate cyan. Relative luminance 0.283; OKLCH L 65.0% C 0.101 H 227.6°. Best body text is #000000 at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#409BBF
RGB	rgb(64, 155, 191)
HSL	hsl(197, 50%, 50%)
HSV	hsv(197, 66%, 75%)
CMYK	cmyk(66.5%, 18.8%, 0%, 25.1%)
CIE-LAB	lab(60.15, -15.60, -26.54)
CIE-LCH	lch(60.15, 30.79, 239.55°)
OKLab	oklab(65% -0.0678 -0.0742)
OKLCH	oklch(65% 0.101 227.6)
XYZ	xyz(23.2359, 28.2918, 53.5164)
Luminance	0.2829 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#409BBF #BF6440

analogous

#40BFA4 #409BBF #405BBF

triadic

#409BBF #BF409B #9BBF40

tetradic

#409BBF #A440BF #BF6440 #5BBF40

square

#409BBF #A440BF #BF6440 #5BBF40

split-complementary

#409BBF #BF405B #BFA440

monochromatic

#215163 #317691 #409BBF #6EB3CE #9CCBDE

Accessibility & contrast

On white

3.15

#409BBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.66

#409BBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #409BBF

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##409BBF	#FFFFFF	#000000	##000000
##409BBF	1.00	3.15	6.66	6.66
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.66	21.00	1.00	1.00
##000000	6.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8898C1

Deuteranopia (green-blind)

#768BBF

Tritanopia (blue-blind)

#00A5A7

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #409bbf;
/* rgb */ color: rgb(64, 155, 191);
/* oklch */ color: oklch(65.0% 0.101 227.6);

Tailwind

colors: {
  custom: {
    50: '#83b8d2',
    500: '#409bbf',
    950: '#000000',
  },
}

SCSS

$custom: #409bbf;
$custom-light: #83b8d2;
$custom-dark: #000000;

JSON

{
  "hex": "#409bbf",
  "rgb": {
    "r": 64,
    "g": 155,
    "b": 191
  },
  "hsl": {
    "h": 197.008,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.64997,
    "c": 0.10053,
    "h": 227.6
  },
  "luminance": 0.28294
}

Semantic roles & 50–950 ramp

primary

#409BBF

secondary

#CAA191

accent

#764ED9

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1114

muted

#7D8082

Preview Lab

Preview with #409BBF

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

Preview Lab → · Contrast checker → · Palette generator →