#408BDF#408BDF

#408BDF is a light, vivid cyan. Relative luminance 0.249; OKLCH L 63.0% C 0.147 H 253.3°. Best body text is #000000 at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#408BDF
RGB	rgb(64, 139, 223)
HSL	hsl(212, 71%, 56%)
HSV	hsv(212, 71%, 87%)
CMYK	cmyk(71.3%, 37.7%, 0%, 12.5%)
CIE-LAB	lab(56.96, 4.43, -49.49)
CIE-LCH	lch(56.96, 49.69, 275.11°)
OKLab	oklab(62.96% -0.0422 -0.141)
OKLCH	oklch(62.96% 0.147 253.3)
XYZ	xyz(24.6613, 24.8802, 73.3004)
Luminance	0.2488 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#408BDF #DF9440

analogous

#40DBDF #408BDF #4540DF

triadic

#408BDF #DF408B #8BDF40

tetradic

#408BDF #DF40DB #DF9440 #40DF45

square

#408BDF #DF40DB #DF9440 #40DF45

split-complementary

#408BDF #DF4540 #DBDF40

monochromatic

#184F8D #206CC1 #408BDF #74ABE8 #A9CBF1

Accessibility & contrast

On white

3.51

#408BDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.98

#408BDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #408BDF

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##408BDF	#FFFFFF	#000000	##000000
##408BDF	1.00	3.51	5.98	5.98
#FFFFFF	3.51	1.00	21.00	21.00
#000000	5.98	21.00	1.00	1.00
##000000	5.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6491E2

Deuteranopia (green-blind)

#4C82DD

Tritanopia (blue-blind)

#009FAA

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #408bdf;
/* rgb */ color: rgb(64, 139, 223);
/* oklch */ color: oklch(63.0% 0.147 253.3);

Tailwind

colors: {
  custom: {
    50: '#87ace9',
    500: '#408bdf',
    950: '#000000',
  },
}

SCSS

$custom: #408bdf;
$custom-light: #87ace9;
$custom-dark: #000000;

JSON

{
  "hex": "#408bdf",
  "rgb": {
    "r": 64,
    "g": 139,
    "b": 223
  },
  "hsl": {
    "h": 211.698,
    "s": 71.3,
    "l": 56.275
  },
  "oklch": {
    "l": 0.62956,
    "c": 0.14714,
    "h": 253.3
  },
  "luminance": 0.24883
}

Semantic roles & 50–950 ramp

primary

#408BDF

secondary

#DEBF9D

accent

#993AEE

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #408BDF

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

Preview Lab → · Contrast checker → · Palette generator →