#409BB3#409BB3

#409BB3 is a light, moderate cyan. Relative luminance 0.278; OKLCH L 64.5% C 0.092 H 218.2°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#409BB3
RGB	rgb(64, 155, 179)
HSL	hsl(193, 47%, 48%)
HSV	hsv(193, 64%, 70%)
CMYK	cmyk(64.2%, 13.4%, 0%, 29.8%)
CIE-LAB	lab(59.69, -19.42, -20.48)
CIE-LCH	lch(59.69, 28.22, 226.52°)
OKLab	oklab(64.48% -0.0724 -0.057)
OKLCH	oklch(64.48% 0.092 218.2)
XYZ	xyz(21.9691, 27.7850, 46.8443)
Luminance	0.2779 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#409BB3 #B35840

analogous

#40B392 #409BB3 #4061B3

triadic

#409BB3 #B3409B #9BB340

tetradic

#409BB3 #9240B3 #B35840 #61B340

square

#409BB3 #9240B3 #B35840 #61B340

split-complementary

#409BB3 #B34061 #B39240

monochromatic

#204D59 #307486 #409BB3 #67B4C9 #94CBD9

Accessibility & contrast

On white

3.20

#409BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#409BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #409BB3

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##409BB3	#FFFFFF	#000000	##000000
##409BB3	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C97B4

Deuteranopia (green-blind)

#7B8BB3

Tritanopia (blue-blind)

#00A3A3

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #409bb3;
/* rgb */ color: rgb(64, 155, 179);
/* oklch */ color: oklch(64.5% 0.092 218.2);

Tailwind

colors: {
  custom: {
    50: '#81b8c9',
    500: '#409bb3',
    950: '#000000',
  },
}

SCSS

$custom: #409bb3;
$custom-light: #81b8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#409bb3",
  "rgb": {
    "r": 64,
    "g": 155,
    "b": 179
  },
  "hsl": {
    "h": 192.522,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.64479,
    "c": 0.09215,
    "h": 218.2
  },
  "luminance": 0.27787
}

Semantic roles & 50–950 ramp

primary

#409BB3

secondary

#C4968A

accent

#6D51D7

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #409BB3

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

Preview Lab → · Contrast checker → · Palette generator →