#010D2F#010D2F

#010D2F is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.5% C 0.072 H 261.8°. Best body text is #FFFFFF at 19.09:1 contrast (WCAG AA passes).

Color values

HEX	#010D2F
RGB	rgb(1, 13, 47)
HSL	hsl(224, 96%, 9%)
HSV	hsv(224, 98%, 18%)
CMYK	cmyk(97.9%, 72.3%, 0%, 81.6%)
CIE-LAB	lab(4.51, 7.97, -23.32)
CIE-LCH	lch(4.51, 24.64, 288.88°)
OKLab	oklab(17.47% -0.0102 -0.0709)
OKLCH	oklch(17.47% 0.072 261.8)
XYZ	xyz(0.6693, 0.4994, 2.7499)
Luminance	0.0050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.82

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010D2F #2F2301

analogous

#01242F #010D2F #0C012F

triadic

#010D2F #2F010D #0D2F01

tetradic

#010D2F #2F0124 #2F2301 #012F0C

square

#010D2F #2F0124 #2F2301 #012F0C

split-complementary

#010D2F #2F0C01 #242F01

monochromatic

#01081E #01081E #010D2F #021E6B #042EA7

Accessibility & contrast

On white

19.09

#010D2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#010D2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010D2F

19.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010D2F	#FFFFFF	#000000	##FFFFFF
##010D2F	1.00	19.09	1.10	19.09
#FFFFFF	19.09	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001230

Deuteranopia (green-blind)

#000D2E

Tritanopia (blue-blind)

#00161C

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #010d2f;
/* rgb */ color: rgb(1, 13, 47);
/* oklch */ color: oklch(17.5% 0.072 261.8);

Tailwind

colors: {
  custom: {
    50: '#494c68',
    500: '#010d2f',
    950: '#000000',
  },
}

SCSS

$custom: #010d2f;
$custom-light: #494c68;
$custom-dark: #000000;

JSON

{
  "hex": "#010d2f",
  "rgb": {
    "r": 1,
    "g": 13,
    "b": 47
  },
  "hsl": {
    "h": 224.348,
    "s": 95.833,
    "l": 9.412
  },
  "oklch": {
    "l": 0.17465,
    "c": 0.07165,
    "h": 261.8
  },
  "luminance": 0.005
}

Semantic roles & 50–950 ramp

primary

#010D2F

secondary

#755C17

accent

#C729FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #010D2F

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

Preview Lab → · Contrast checker → · Palette generator →