#010B2A#010B2A

#010B2A is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.4% C 0.066 H 262.0°. Best body text is #FFFFFF at 19.40:1 contrast (WCAG AA passes).

Color values

HEX	#010B2A
RGB	rgb(1, 11, 42)
HSL	hsl(225, 95%, 8%)
HSV	hsv(225, 98%, 16%)
CMYK	cmyk(97.6%, 73.8%, 0%, 83.5%)
CIE-LAB	lab(3.73, 6.45, -20.79)
CIE-LCH	lch(3.73, 21.77, 287.25°)
OKLab	oklab(16.38% -0.0092 -0.0658)
OKLCH	oklch(16.38% 0.066 262)
XYZ	xyz(0.5500, 0.4129, 2.2407)
Luminance	0.0041 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.84

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010B2A #2A2001

analogous

#011F2A #010B2A #0B012A

triadic

#010B2A #2A010B #0B2A01

tetradic

#010B2A #2A011F #2A2001 #012A0B

square

#010B2A #2A011F #2A2001 #012A0B

split-complementary

#010B2A #2A0B01 #1F2A01

monochromatic

#01081E #01081E #010B2A #021B66 #042AA2

Accessibility & contrast

On white

19.40

#010B2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#010B2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010B2A

19.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010B2A	#FFFFFF	#000000	##FFFFFF
##010B2A	1.00	19.40	1.08	19.40
#FFFFFF	19.40	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F2B

Deuteranopia (green-blind)

#000B29

Tritanopia (blue-blind)

#001318

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #010b2a;
/* rgb */ color: rgb(1, 11, 42);
/* oklch */ color: oklch(16.4% 0.066 262.0);

Tailwind

colors: {
  custom: {
    50: '#484b63',
    500: '#010b2a',
    950: '#000000',
  },
}

SCSS

$custom: #010b2a;
$custom-light: #484b63;
$custom-dark: #000000;

JSON

{
  "hex": "#010b2a",
  "rgb": {
    "r": 1,
    "g": 11,
    "b": 42
  },
  "hsl": {
    "h": 225.366,
    "s": 95.349,
    "l": 8.431
  },
  "oklch": {
    "l": 0.16385,
    "c": 0.06643,
    "h": 262
  },
  "luminance": 0.00413
}

Semantic roles & 50–950 ramp

primary

#010B2A

secondary

#705A16

accent

#CB29FF

background

#F4F4F5

surface

#E6E7EA

border

#C2C3C6

text

#010105

muted

#777779

Preview Lab

Preview with #010B2A

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

Preview Lab → · Contrast checker → · Palette generator →