#010A23#010A23

#010A23 is a very dark, muted blue. Relative luminance 0.003; OKLCH L 15.3% C 0.056 H 260.5°. Best body text is #FFFFFF at 19.64:1 contrast (WCAG AA passes).

Color values

HEX	#010A23
RGB	rgb(1, 10, 35)
HSL	hsl(224, 94%, 7%)
HSV	hsv(224, 97%, 14%)
CMYK	cmyk(97.1%, 71.4%, 0%, 86.3%)
CIE-LAB	lab(3.11, 3.96, -16.38)
CIE-LCH	lch(3.11, 16.85, 283.58°)
OKLab	oklab(15.34% -0.0092 -0.0552)
OKLCH	oklch(15.34% 0.056 260.5)
XYZ	xyz(0.4243, 0.3448, 1.6340)
Luminance	0.0034 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.14

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010A23 #231A01

analogous

#011B23 #010A23 #090123

triadic

#010A23 #23010A #0A2301

tetradic

#010A23 #23011B #231A01 #012309

square

#010A23 #23011B #231A01 #012309

split-complementary

#010A23 #230901 #1B2301

monochromatic

#01081E #01081E #010A23 #031B5F #042C9A

Accessibility & contrast

On white

19.64

#010A23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#010A23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010A23

19.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010A23	#FFFFFF	#000000	##FFFFFF
##010A23	1.00	19.64	1.07	19.64
#FFFFFF	19.64	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D24

Deuteranopia (green-blind)

#000A23

Tritanopia (blue-blind)

#001014

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #010a23;
/* rgb */ color: rgb(1, 10, 35);
/* oklch */ color: oklch(15.3% 0.056 260.5);

Tailwind

colors: {
  custom: {
    50: '#474b5e',
    500: '#010a23',
    950: '#000000',
  },
}

SCSS

$custom: #010a23;
$custom-light: #474b5e;
$custom-dark: #000000;

JSON

{
  "hex": "#010a23",
  "rgb": {
    "r": 1,
    "g": 10,
    "b": 35
  },
  "hsl": {
    "h": 224.118,
    "s": 94.444,
    "l": 7.059
  },
  "oklch": {
    "l": 0.15338,
    "c": 0.05598,
    "h": 260.5
  },
  "luminance": 0.00345
}

Semantic roles & 50–950 ramp

primary

#010A23

secondary

#6A5416

accent

#C629FF

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000104

muted

#777779

Preview Lab

Preview with #010A23

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

Preview Lab → · Contrast checker → · Palette generator →