#01052B#01052B

#01052B is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 14.9% C 0.078 H 265.6°. Best body text is #FFFFFF at 19.85:1 contrast (WCAG AA passes).

Color values

HEX	#01052B
RGB	rgb(1, 5, 43)
HSL	hsl(234, 95%, 9%)
HSV	hsv(234, 98%, 17%)
CMYK	cmyk(97.7%, 88.4%, 0%, 83.1%)
CIE-LAB	lab(2.61, 9.33, -23.31)
CIE-LCH	lch(2.61, 25.11, 291.81°)
OKLab	oklab(14.89% -0.006 -0.078)
OKLCH	oklch(14.89% 0.078 265.6)
XYZ	xyz(0.5027, 0.2893, 2.3144)
Luminance	0.0029 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#01052B #2B2701

analogous

#011A2B #01052B #12012B

triadic

#01052B #2B0105 #052B01

tetradic

#01052B #2B011A #2B2701 #012B12

square

#01052B #2B011A #2B2701 #012B12

split-complementary

#01052B #2B1201 #1A2B01

monochromatic

#01031E #01031E #01052B #020C67 #0413A3

Accessibility & contrast

On white

19.85

#01052B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#01052B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #01052B

19.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##01052B	#FFFFFF	#000000	##FFFFFF
##01052B	1.00	19.85	1.06	19.85
#FFFFFF	19.85	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000C2C

Deuteranopia (green-blind)

#00072A

Tritanopia (blue-blind)

#000F17

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #01052b;
/* rgb */ color: rgb(1, 5, 43);
/* oklch */ color: oklch(14.9% 0.078 265.6);

Tailwind

colors: {
  custom: {
    50: '#484964',
    500: '#01052b',
    950: '#000000',
  },
}

SCSS

$custom: #01052b;
$custom-light: #484964;
$custom-dark: #000000;

JSON

{
  "hex": "#01052b",
  "rgb": {
    "r": 1,
    "g": 5,
    "b": 43
  },
  "hsl": {
    "h": 234.286,
    "s": 95.455,
    "l": 8.627
  },
  "oklch": {
    "l": 0.14893,
    "c": 0.07827,
    "h": 265.6
  },
  "luminance": 0.00289
}

Semantic roles & 50–950 ramp

primary

#01052B

secondary

#716917

accent

#EB29FF

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010005

muted

#77777A

Preview Lab

Preview with #01052B

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

Preview Lab → · Contrast checker → · Palette generator →