#010B28#010B28

#010B28 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.2% C 0.063 H 261.4°. Best body text is #FFFFFF at 19.45:1 contrast (WCAG AA passes).

Color values

HEX	#010B28
RGB	rgb(1, 11, 40)
HSL	hsl(225, 95%, 8%)
HSV	hsv(225, 98%, 16%)
CMYK	cmyk(97.5%, 72.5%, 0%, 84.3%)
CIE-LAB	lab(3.60, 5.57, -19.47)
CIE-LCH	lch(3.60, 20.25, 285.97°)
OKLab	oklab(16.16% -0.0094 -0.0623)
OKLCH	oklch(16.16% 0.063 261.4)
XYZ	xyz(0.5151, 0.3989, 2.0569)
Luminance	0.0040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.52

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010B28 #281E01

analogous

#011E28 #010B28 #0A0128

triadic

#010B28 #28010B #0B2801

tetradic

#010B28 #28011E #281E01 #01280A

square

#010B28 #28011E #281E01 #01280A

split-complementary

#010B28 #280A01 #1E2801

monochromatic

#01081E #01081E #010B28 #021B64 #042C9F

Accessibility & contrast

On white

19.45

#010B28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#010B28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010B28

19.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010B28	#FFFFFF	#000000	##FFFFFF
##010B28	1.00	19.45	1.08	19.45
#FFFFFF	19.45	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F29

Deuteranopia (green-blind)

#000B27

Tritanopia (blue-blind)

#001217

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #010b28;
/* rgb */ color: rgb(1, 11, 40);
/* oklch */ color: oklch(16.2% 0.063 261.4);

Tailwind

colors: {
  custom: {
    50: '#474b62',
    500: '#010b28',
    950: '#000000',
  },
}

SCSS

$custom: #010b28;
$custom-light: #474b62;
$custom-dark: #000000;

JSON

{
  "hex": "#010b28",
  "rgb": {
    "r": 1,
    "g": 11,
    "b": 40
  },
  "hsl": {
    "h": 224.615,
    "s": 95.122,
    "l": 8.039
  },
  "oklch": {
    "l": 0.16159,
    "c": 0.06304,
    "h": 261.4
  },
  "luminance": 0.00399
}

Semantic roles & 50–950 ramp

primary

#010B28

secondary

#6F5816

accent

#C829FF

background

#F4F4F5

surface

#E6E7EA

border

#C2C3C6

text

#000105

muted

#777779

Preview Lab

Preview with #010B28

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

Preview Lab → · Contrast checker → · Palette generator →