#010F2D#010F2D

#010F2D is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.8% C 0.065 H 259.6°. Best body text is #FFFFFF at 18.96:1 contrast (WCAG AA passes).

Color values

HEX	#010F2D
RGB	rgb(1, 15, 45)
HSL	hsl(221, 96%, 9%)
HSV	hsv(221, 98%, 18%)
CMYK	cmyk(97.8%, 66.7%, 0%, 82.4%)
CIE-LAB	lab(4.86, 5.98, -21.27)
CIE-LCH	lch(4.86, 22.10, 285.70°)
OKLab	oklab(17.77% -0.0117 -0.0641)
OKLCH	oklch(17.77% 0.065 259.6)
XYZ	xyz(0.6568, 0.5375, 2.5512)
Luminance	0.0054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.04

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010F2D #2D1F01

analogous

#01252D #010F2D #09012D

triadic

#010F2D #2D010F #0F2D01

tetradic

#010F2D #2D0125 #2D1F01 #012D09

square

#010F2D #2D0125 #2D1F01 #012D09

split-complementary

#010F2D #2D0901 #252D01

monochromatic

#010A1E #010A1E #010F2D #022369 #0437A5

Accessibility & contrast

On white

18.96

#010F2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#010F2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010F2D

18.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010F2D	#FFFFFF	#000000	##FFFFFF
##010F2D	1.00	18.96	1.11	18.96
#FFFFFF	18.96	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00132E

Deuteranopia (green-blind)

#000E2C

Tritanopia (blue-blind)

#00171B

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #010f2d;
/* rgb */ color: rgb(1, 15, 45);
/* oklch */ color: oklch(17.8% 0.065 259.6);

Tailwind

colors: {
  custom: {
    50: '#484d66',
    500: '#010f2d',
    950: '#000000',
  },
}

SCSS

$custom: #010f2d;
$custom-light: #484d66;
$custom-dark: #000000;

JSON

{
  "hex": "#010f2d",
  "rgb": {
    "r": 1,
    "g": 15,
    "b": 45
  },
  "hsl": {
    "h": 220.909,
    "s": 95.652,
    "l": 9.02
  },
  "oklch": {
    "l": 0.17772,
    "c": 0.06521,
    "h": 259.6
  },
  "luminance": 0.00538
}

Semantic roles & 50–950 ramp

primary

#010F2D

secondary

#735617

accent

#BB29FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #010F2D

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

Preview Lab → · Contrast checker → · Palette generator →