Mediumblue#0000CD

#0000CD is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 38.3% C 0.266 H 264.1°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Mediumblue — editorial page

Color values

HEX	#0000CD
RGB	rgb(0, 0, 205)
HSL	hsl(240, 100%, 40%)
HSV	hsv(240, 100%, 80%)
CMYK	cmyk(100%, 100%, 0%, 19.6%)
CIE-LAB	lab(24.97, 67.18, -91.50)
CIE-LCH	lch(24.97, 113.51, 306.28°)
OKLab	oklab(38.35% -0.0275 -0.2643)
OKLCH	oklch(38.35% 0.266 264.1)
XYZ	xyz(11.0156, 4.4063, 58.0156)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0000CD #CDCD00

analogous

#0066CD #0000CD #6600CD

triadic

#0000CD #CD0000 #00CD00

tetradic

#0000CD #CD0066 #CDCD00 #00CD66

square

#0000CD #CD0066 #CDCD00 #00CD66

split-complementary

#0000CD #CD6600 #66CD00

monochromatic

#000053 #000090 #0000CD #0B0BFF #4848FF

Accessibility & contrast

On white

11.16

#0000CD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#0000CD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0000CD

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0000CD	#FFFFFF	#000000	##FFFFFF
##0000CD	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046D2

Deuteranopia (green-blind)

#002FCA

Tritanopia (blue-blind)

#005577

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #0000cd;
/* rgb */ color: rgb(0, 0, 205);
/* oklch */ color: oklch(38.3% 0.266 264.1);

Tailwind

colors: {
  custom: {
    50: '#7d56de',
    500: '#0000cd',
    950: '#000000',
  },
}

SCSS

$custom: #0000cd;
$custom-light: #7d56de;
$custom-dark: #000000;

JSON

{
  "hex": "#0000cd",
  "rgb": {
    "r": 0,
    "g": 0,
    "b": 205
  },
  "hsl": {
    "h": 240,
    "s": 100,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38345,
    "c": 0.26571,
    "h": 264.1
  },
  "luminance": 0.04408
}

Semantic roles & 50–950 ramp

primary

#0000CD

secondary

#DFDF4A

accent

#FF29FF

background

#F8F5FD

surface

#F0E9FB

border

#CBC5D4

text

#0D0415

muted

#7D7983

Preview Lab

Preview with #0000CD

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

Preview Lab → · Contrast checker → · Palette generator →