#010A28#010A28

#010A28 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 15.9% C 0.065 H 262.2°. Best body text is #FFFFFF at 19.53:1 contrast (WCAG AA passes).

Color values

HEX	#010A28
RGB	rgb(1, 10, 40)
HSL	hsl(226, 95%, 8%)
HSV	hsv(226, 98%, 16%)
CMYK	cmyk(97.5%, 75%, 0%, 84.3%)
CIE-LAB	lab(3.40, 5.97, -19.78)
CIE-LCH	lch(3.40, 20.66, 286.81°)
OKLab	oklab(15.9% -0.0087 -0.064)
OKLCH	oklch(15.9% 0.065 262.2)
XYZ	xyz(0.5039, 0.3767, 2.0532)
Luminance	0.0038 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.28

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010A28 #281F01

analogous

#011D28 #010A28 #0B0128

triadic

#010A28 #28010A #0A2801

tetradic

#010A28 #28011D #281F01 #01280B

square

#010A28 #28011D #281F01 #01280B

split-complementary

#010A28 #280B01 #1D2801

monochromatic

#01071E #01071E #010A28 #021964 #04289F

Accessibility & contrast

On white

19.53

#010A28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#010A28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010A28

19.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010A28	#FFFFFF	#000000	##FFFFFF
##010A28	1.00	19.53	1.08	19.53
#FFFFFF	19.53	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E29

Deuteranopia (green-blind)

#000A27

Tritanopia (blue-blind)

#001217

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #010a28;
/* rgb */ color: rgb(1, 10, 40);
/* oklch */ color: oklch(15.9% 0.065 262.2);

Tailwind

colors: {
  custom: {
    50: '#474b62',
    500: '#010a28',
    950: '#000000',
  },
}

SCSS

$custom: #010a28;
$custom-light: #474b62;
$custom-dark: #000000;

JSON

{
  "hex": "#010a28",
  "rgb": {
    "r": 1,
    "g": 10,
    "b": 40
  },
  "hsl": {
    "h": 226.154,
    "s": 95.122,
    "l": 8.039
  },
  "oklch": {
    "l": 0.15897,
    "c": 0.06461,
    "h": 262.2
  },
  "luminance": 0.00377
}

Semantic roles & 50–950 ramp

primary

#010A28

secondary

#6F5A16

accent

#CE29FF

background

#F4F4F5

surface

#E6E7EA

border

#C2C3C6

text

#000105

muted

#777779

Preview Lab

Preview with #010A28

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

Preview Lab → · Contrast checker → · Palette generator →