#409BB4#409BB4

#409BB4 is a light, moderate cyan. Relative luminance 0.278; OKLCH L 64.5% C 0.093 H 219.0°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#409BB4
RGB	rgb(64, 155, 180)
HSL	hsl(193, 48%, 48%)
HSV	hsv(193, 64%, 71%)
CMYK	cmyk(64.4%, 13.9%, 0%, 29.4%)
CIE-LAB	lab(59.73, -19.10, -20.98)
CIE-LCH	lch(59.73, 28.38, 227.69°)
OKLab	oklab(64.52% -0.072 -0.0584)
OKLCH	oklch(64.52% 0.093 219)
XYZ	xyz(22.0706, 27.8256, 47.3789)
Luminance	0.2783 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#409BB4 #B45940

analogous

#40B493 #409BB4 #4061B4

triadic

#409BB4 #B4409B #9BB440

tetradic

#409BB4 #9340B4 #B45940 #61B440

square

#409BB4 #9340B4 #B45940 #61B440

split-complementary

#409BB4 #B44061 #B49340

monochromatic

#204D5A #307487 #409BB4 #68B4C9 #95CBD9

Accessibility & contrast

On white

3.20

#409BB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#409BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #409BB4

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##409BB4	#FFFFFF	#000000	##000000
##409BB4	1.00	3.20	6.57	6.57
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B97B5

Deuteranopia (green-blind)

#7B8BB4

Tritanopia (blue-blind)

#00A3A3

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #409bb4;
/* rgb */ color: rgb(64, 155, 180);
/* oklch */ color: oklch(64.5% 0.093 219.0);

Tailwind

colors: {
  custom: {
    50: '#82b8ca',
    500: '#409bb4',
    950: '#000000',
  },
}

SCSS

$custom: #409bb4;
$custom-light: #82b8ca;
$custom-dark: #000000;

JSON

{
  "hex": "#409bb4",
  "rgb": {
    "r": 64,
    "g": 155,
    "b": 180
  },
  "hsl": {
    "h": 192.931,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.64521,
    "c": 0.09273,
    "h": 219
  },
  "luminance": 0.27828
}

Semantic roles & 50–950 ramp

primary

#409BB4

secondary

#C5978B

accent

#6E51D7

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #409BB4

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

Preview Lab → · Contrast checker → · Palette generator →