#409CDF#409CDF

#409CDF is a light, vivid cyan. Relative luminance 0.302; OKLCH L 66.8% C 0.132 H 243.9°. Best body text is #000000 at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#409CDF
RGB	rgb(64, 156, 223)
HSL	hsl(205, 71%, 56%)
HSV	hsv(205, 71%, 87%)
CMYK	cmyk(71.3%, 30%, 0%, 12.5%)
CIE-LAB	lab(61.82, -5.46, -41.82)
CIE-LCH	lch(61.82, 42.17, 262.56°)
OKLab	oklab(66.77% -0.0581 -0.1183)
OKLCH	oklch(66.77% 0.132 243.9)
XYZ	xyz(27.3170, 30.1916, 74.1856)
Luminance	0.3019 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#409CDF #DF8340

analogous

#40DFD3 #409CDF #404DDF

triadic

#409CDF #DF409C #9CDF40

tetradic

#409CDF #D340DF #DF8340 #4DDF40

square

#409CDF #D340DF #DF8340 #4DDF40

split-complementary

#409CDF #DF404D #DFD340

monochromatic

#185C8D #207EC1 #409CDF #74B7E8 #A9D2F1

Accessibility & contrast

On white

2.98

#409CDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.04

#409CDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #409CDF

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##409CDF	#FFFFFF	#000000	##000000
##409CDF	1.00	2.98	7.04	7.04
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.04	21.00	1.00	1.00
##000000	7.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D9EE2

Deuteranopia (green-blind)

#678FDE

Tritanopia (blue-blind)

#00ACB4

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #409cdf;
/* rgb */ color: rgb(64, 156, 223);
/* oklch */ color: oklch(66.8% 0.132 243.9);

Tailwind

colors: {
  custom: {
    50: '#88b9e9',
    500: '#409cdf',
    950: '#000000',
  },
}

SCSS

$custom: #409cdf;
$custom-light: #88b9e9;
$custom-dark: #000000;

JSON

{
  "hex": "#409cdf",
  "rgb": {
    "r": 64,
    "g": 156,
    "b": 223
  },
  "hsl": {
    "h": 205.283,
    "s": 71.3,
    "l": 56.275
  },
  "oklch": {
    "l": 0.66774,
    "c": 0.13181,
    "h": 243.9
  },
  "luminance": 0.30195
}

Semantic roles & 50–950 ramp

primary

#409CDF

secondary

#DEB89D

accent

#863AEE

background

#F9FBFE

surface

#F1F6FD

border

#CBD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #409CDF

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

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