#000528#000528

#000528 is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 14.3% C 0.075 H 263.3°. Best body text is #FFFFFF at 19.95:1 contrast (WCAG AA passes).

Color values

HEX	#000528
RGB	rgb(0, 5, 40)
HSL	hsl(233, 100%, 8%)
HSV	hsv(233, 100%, 16%)
CMYK	cmyk(100%, 87.5%, 0%, 84.3%)
CIE-LAB	lab(2.36, 7.72, -21.41)
CIE-LCH	lch(2.36, 22.76, 289.82°)
OKLab	oklab(14.34% -0.0087 -0.0741)
OKLCH	oklch(14.34% 0.075 263.3)
XYZ	xyz(0.4371, 0.2617, 2.0345)
Luminance	0.0026 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.19

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#000528 #282300

analogous

#001928 #000528 #0F0028

triadic

#000528 #280005 #052800

tetradic

#000528 #280019 #282300 #00280F

square

#000528 #280019 #282300 #00280F

split-complementary

#000528 #280F00 #192800

monochromatic

#00041F #00041F #000528 #000D65 #0014A2

Accessibility & contrast

On white

19.95

#000528 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#000528 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #000528

19.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##000528	#FFFFFF	#000000	##FFFFFF
##000528	1.00	19.95	1.05	19.95
#FFFFFF	19.95	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	19.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000B29

Deuteranopia (green-blind)

#000727

Tritanopia (blue-blind)

#000E15

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #000528;
/* rgb */ color: rgb(0, 5, 40);
/* oklch */ color: oklch(14.3% 0.075 263.3);

Tailwind

colors: {
  custom: {
    50: '#464962',
    500: '#000528',
    950: '#000000',
  },
}

SCSS

$custom: #000528;
$custom-light: #464962;
$custom-dark: #000000;

JSON

{
  "hex": "#000528",
  "rgb": {
    "r": 0,
    "g": 5,
    "b": 40
  },
  "hsl": {
    "h": 232.5,
    "s": 100,
    "l": 7.843
  },
  "oklch": {
    "l": 0.14341,
    "c": 0.07457,
    "h": 263.3
  },
  "luminance": 0.00262
}

Semantic roles & 50–950 ramp

primary

#000528

secondary

#706414

accent

#E429FF

background

#F4F4F5

surface

#E6E6EA

border

#C2C2C6

text

#000005

muted

#777779

Preview Lab

Preview with #000528

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

Preview Lab → · Contrast checker → · Palette generator →