#010A2A#010A2A

#010A2A is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.1% C 0.068 H 262.7°. Best body text is #FFFFFF at 19.48:1 contrast (WCAG AA passes).

Color values

HEX	#010A2A
RGB	rgb(1, 10, 42)
HSL	hsl(227, 95%, 8%)
HSV	hsv(227, 98%, 16%)
CMYK	cmyk(97.6%, 76.2%, 0%, 83.5%)
CIE-LAB	lab(3.53, 6.86, -21.11)
CIE-LCH	lch(3.53, 22.20, 288.01°)
OKLab	oklab(16.13% -0.0086 -0.0674)
OKLCH	oklch(16.13% 0.068 262.7)
XYZ	xyz(0.5388, 0.3906, 2.2370)
Luminance	0.0039 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.60

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010A2A #2A2101

analogous

#011E2A #010A2A #0C012A

triadic

#010A2A #2A010A #0A2A01

tetradic

#010A2A #2A011E #2A2101 #012A0C

square

#010A2A #2A011E #2A2101 #012A0C

split-complementary

#010A2A #2A0C01 #1E2A01

monochromatic

#01071E #01071E #010A2A #021866 #0426A2

Accessibility & contrast

On white

19.48

#010A2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#010A2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010A2A

19.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010A2A	#FFFFFF	#000000	##FFFFFF
##010A2A	1.00	19.48	1.08	19.48
#FFFFFF	19.48	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F2B

Deuteranopia (green-blind)

#000B29

Tritanopia (blue-blind)

#001218

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #010a2a;
/* rgb */ color: rgb(1, 10, 42);
/* oklch */ color: oklch(16.1% 0.068 262.7);

Tailwind

colors: {
  custom: {
    50: '#474b64',
    500: '#010a2a',
    950: '#000000',
  },
}

SCSS

$custom: #010a2a;
$custom-light: #474b64;
$custom-dark: #000000;

JSON

{
  "hex": "#010a2a",
  "rgb": {
    "r": 1,
    "g": 10,
    "b": 42
  },
  "hsl": {
    "h": 226.829,
    "s": 95.349,
    "l": 8.431
  },
  "oklch": {
    "l": 0.1613,
    "c": 0.06798,
    "h": 262.7
  },
  "luminance": 0.00391
}

Semantic roles & 50–950 ramp

primary

#010A2A

secondary

#705D16

accent

#D029FF

background

#F4F4F5

surface

#E6E7EA

border

#C2C3C6

text

#010105

muted

#777779

Preview Lab

Preview with #010A2A

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

Preview Lab → · Contrast checker → · Palette generator →