#409BD3#409BD3

#409BD3 is a light, moderate cyan. Relative luminance 0.292; OKLCH L 65.9% C 0.119 H 239.4°. Best body text is #000000 at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#409BD3
RGB	rgb(64, 155, 211)
HSL	hsl(203, 63%, 54%)
HSV	hsv(203, 70%, 83%)
CMYK	cmyk(69.7%, 26.5%, 0%, 17.3%)
CIE-LAB	lab(60.99, -8.98, -36.45)
CIE-LCH	lch(60.99, 37.54, 256.15°)
OKLab	oklab(65.94% -0.0608 -0.1027)
OKLCH	oklch(65.94% 0.119 239.4)
XYZ	xyz(25.5890, 29.2330, 65.9093)
Luminance	0.2924 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#409BD3 #D37840

analogous

#40D3C2 #409BD3 #4052D3

triadic

#409BD3 #D3409B #9BD340

tetradic

#409BD3 #C240D3 #D37840 #52D340

square

#409BD3 #C240D3 #D37840 #52D340

split-complementary

#409BD3 #D34052 #D3C240

monochromatic

#1D587C #287BAE #409BD3 #72B5DE #A3CFEA

Accessibility & contrast

On white

3.07

#409BD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.85

#409BD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #409BD3

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##409BD3	#FFFFFF	#000000	##000000
##409BD3	1.00	3.07	6.85	6.85
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.85	21.00	1.00	1.00
##000000	6.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#819BD6

Deuteranopia (green-blind)

#6D8DD2

Tritanopia (blue-blind)

#00A9AE

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #409bd3;
/* rgb */ color: rgb(64, 155, 211);
/* oklch */ color: oklch(65.9% 0.119 239.4);

Tailwind

colors: {
  custom: {
    50: '#86b8e0',
    500: '#409bd3',
    950: '#000000',
  },
}

SCSS

$custom: #409bd3;
$custom-light: #86b8e0;
$custom-dark: #000000;

JSON

{
  "hex": "#409bd3",
  "rgb": {
    "r": 64,
    "g": 155,
    "b": 211
  },
  "hsl": {
    "h": 202.857,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.65937,
    "c": 0.11941,
    "h": 239.4
  },
  "luminance": 0.29236
}

Semantic roles & 50–950 ramp

primary

#409BD3

secondary

#D7B098

accent

#8042E6

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #409BD3

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

Preview Lab → · Contrast checker → · Palette generator →