#010F2F#010F2F

#010F2F is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.0% C 0.069 H 260.4°. Best body text is #FFFFFF at 18.91:1 contrast (WCAG AA passes).

Color values

HEX	#010F2F
RGB	rgb(1, 15, 47)
HSL	hsl(222, 96%, 9%)
HSV	hsv(222, 98%, 18%)
CMYK	cmyk(97.9%, 68.1%, 0%, 81.6%)
CIE-LAB	lab(5.00, 6.98, -22.54)
CIE-LCH	lch(5.00, 23.60, 287.21°)
OKLab	oklab(17.98% -0.0115 -0.0676)
OKLCH	oklch(17.98% 0.069 260.4)
XYZ	xyz(0.6962, 0.5532, 2.7589)
Luminance	0.0055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.43

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010F2F #2F2101

analogous

#01262F #010F2F #0A012F

triadic

#010F2F #2F010F #0F2F01

tetradic

#010F2F #2F0126 #2F2101 #012F0A

square

#010F2F #2F0126 #2F2101 #012F0A

split-complementary

#010F2F #2F0A01 #262F01

monochromatic

#010A1E #010A1E #010F2F #02226B #0435A7

Accessibility & contrast

On white

18.91

#010F2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#010F2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010F2F

18.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010F2F	#FFFFFF	#000000	##FFFFFF
##010F2F	1.00	18.91	1.11	18.91
#FFFFFF	18.91	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001330

Deuteranopia (green-blind)

#000F2E

Tritanopia (blue-blind)

#00171C

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #010f2f;
/* rgb */ color: rgb(1, 15, 47);
/* oklch */ color: oklch(18.0% 0.069 260.4);

Tailwind

colors: {
  custom: {
    50: '#494d68',
    500: '#010f2f',
    950: '#000000',
  },
}

SCSS

$custom: #010f2f;
$custom-light: #494d68;
$custom-dark: #000000;

JSON

{
  "hex": "#010f2f",
  "rgb": {
    "r": 1,
    "g": 15,
    "b": 47
  },
  "hsl": {
    "h": 221.739,
    "s": 95.833,
    "l": 9.412
  },
  "oklch": {
    "l": 0.17983,
    "c": 0.06855,
    "h": 260.4
  },
  "luminance": 0.00553
}

Semantic roles & 50–950 ramp

primary

#010F2F

secondary

#755817

accent

#BE29FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #010F2F

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

Preview Lab → · Contrast checker → · Palette generator →