Darkblue#00008B

#00008B is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.8% C 0.199 H 264.1°. Best body text is #FFFFFF at 15.30:1 contrast (WCAG AA passes).

Darkblue — editorial page

Color values

HEX	#00008B
RGB	rgb(0, 0, 139)
HSL	hsl(240, 100%, 27%)
HSV	hsv(240, 100%, 55%)
CMYK	cmyk(100%, 100%, 0%, 45.5%)
CIE-LAB	lab(14.75, 50.42, -68.68)
CIE-LCH	lch(14.75, 85.20, 306.29°)
OKLab	oklab(28.78% -0.0207 -0.1984)
OKLCH	oklch(28.78% 0.199 264.1)
XYZ	xyz(4.6586, 1.8634, 24.5352)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00008B #8B8B00

analogous

#00468B #00008B #46008B

triadic

#00008B #8B0000 #008B00

tetradic

#00008B #8B0046 #8B8B00 #008B46

square

#00008B #8B0046 #8B8B00 #008B46

split-complementary

#00008B #8B4600 #468B00

monochromatic

#00001F #00004E #00008B #0000C8 #0606FF

Accessibility & contrast

On white

15.30

#00008B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#00008B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00008B

15.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00008B	#FFFFFF	#000000	##FFFFFF
##00008B	1.00	15.30	1.37	15.30
#FFFFFF	15.30	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C8E

Deuteranopia (green-blind)

#001D89

Tritanopia (blue-blind)

#00374F

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #00008b;
/* rgb */ color: rgb(0, 0, 139);
/* oklch */ color: oklch(28.8% 0.199 264.1);

Tailwind

colors: {
  custom: {
    50: '#6b4daf',
    500: '#00008b',
    950: '#000000',
  },
}

SCSS

$custom: #00008b;
$custom-light: #6b4daf;
$custom-dark: #000000;

JSON

{
  "hex": "#00008b",
  "rgb": {
    "r": 0,
    "g": 0,
    "b": 139
  },
  "hsl": {
    "h": 240,
    "s": 100,
    "l": 27.255
  },
  "oklch": {
    "l": 0.28782,
    "c": 0.19944,
    "h": 264.1
  },
  "luminance": 0.01864
}

Semantic roles & 50–950 ramp

primary

#00008B

secondary

#C4C423

accent

#FF29FF

background

#F7F4FA

surface

#EDE7F5

border

#C8C3CF

text

#090211

muted

#7B7880

Preview Lab

Preview with #00008B

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

Preview Lab → · Contrast checker → · Palette generator →