#408CD3#408CD3

#408CD3 is a light, vivid cyan. Relative luminance 0.245; OKLCH L 62.5% C 0.131 H 249.4°. Best body text is #000000 at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#408CD3
RGB	rgb(64, 140, 211)
HSL	hsl(209, 63%, 54%)
HSV	hsv(209, 70%, 83%)
CMYK	cmyk(69.7%, 33.6%, 0%, 17.3%)
CIE-LAB	lab(56.63, -0.38, -43.29)
CIE-LCH	lch(56.63, 43.29, 269.50°)
OKLab	oklab(62.5% -0.0462 -0.1228)
OKLCH	oklch(62.5% 0.131 249.4)
XYZ	xyz(23.2459, 24.5468, 65.1283)
Luminance	0.2455 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#408CD3 #D38740

analogous

#40D3D1 #408CD3 #4043D3

triadic

#408CD3 #D3408C #8CD340

tetradic

#408CD3 #D140D3 #D38740 #43D340

square

#408CD3 #D140D3 #D38740 #43D340

split-complementary

#408CD3 #D34043 #D3D140

monochromatic

#1D4E7C #286DAE #408CD3 #72AADE #A3C8EA

Accessibility & contrast

On white

3.55

#408CD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.91

#408CD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #408CD3

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##408CD3	#FFFFFF	#000000	##000000
##408CD3	1.00	3.55	5.91	5.91
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.91	21.00	1.00	1.00
##000000	5.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C8FD6

Deuteranopia (green-blind)

#5782D2

Tritanopia (blue-blind)

#009DA6

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #408cd3;
/* rgb */ color: rgb(64, 140, 211);
/* oklch */ color: oklch(62.5% 0.131 249.4);

Tailwind

colors: {
  custom: {
    50: '#85ade1',
    500: '#408cd3',
    950: '#000000',
  },
}

SCSS

$custom: #408cd3;
$custom-light: #85ade1;
$custom-dark: #000000;

JSON

{
  "hex": "#408cd3",
  "rgb": {
    "r": 64,
    "g": 140,
    "b": 211
  },
  "hsl": {
    "h": 208.98,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.62499,
    "c": 0.1312,
    "h": 249.4
  },
  "luminance": 0.24549
}

Semantic roles & 50–950 ramp

primary

#408CD3

secondary

#D7B698

accent

#9142E6

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #408CD3

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

Preview Lab → · Contrast checker → · Palette generator →