#0A1027#0A1027

#0A1027 is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.2% C 0.048 H 270.1°. Best body text is #FFFFFF at 18.81:1 contrast (WCAG AA passes).

Color values

HEX	#0A1027
RGB	rgb(10, 16, 39)
HSL	hsl(228, 59%, 10%)
HSV	hsv(228, 74%, 15%)
CMYK	cmyk(74.4%, 59%, 0%, 84.7%)
CIE-LAB	lab(5.25, 5.08, -16.09)
CIE-LCH	lch(5.25, 16.87, 287.51°)
OKLab	oklab(18.21% 0.0001 -0.0478)
OKLCH	oklch(18.21% 0.048 270.1)
XYZ	xyz(0.6766, 0.5815, 1.9957)
Luminance	0.0058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.24

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1027 #27210A

analogous

#0A1F27 #0A1027 #130A27

triadic

#0A1027 #270A10 #10270A

tetradic

#0A1027 #270A1F #27210A #0A2713

square

#0A1027 #270A1F #27210A #0A2713

split-complementary

#0A1027 #27130A #1F270A

monochromatic

#060A18 #060A18 #0A1027 #162458 #233888

Accessibility & contrast

On white

18.81

#0A1027 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0A1027 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1027

18.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1027	#FFFFFF	#000000	##FFFFFF
##0A1027	1.00	18.81	1.12	18.81
#FFFFFF	18.81	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061328

Deuteranopia (green-blind)

#031027

Tritanopia (blue-blind)

#001519

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #0a1027;
/* rgb */ color: rgb(10, 16, 39);
/* oklch */ color: oklch(18.2% 0.048 270.1);

Tailwind

colors: {
  custom: {
    50: '#4c4e61',
    500: '#0a1027',
    950: '#000000',
  },
}

SCSS

$custom: #0a1027;
$custom-light: #4c4e61;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1027",
  "rgb": {
    "r": 10,
    "g": 16,
    "b": 39
  },
  "hsl": {
    "h": 227.586,
    "s": 59.184,
    "l": 9.608
  },
  "oklch": {
    "l": 0.18213,
    "c": 0.04784,
    "h": 270.1
  },
  "luminance": 0.00582
}

Semantic roles & 50–950 ramp

primary

#0A1027

secondary

#645729

accent

#C245E2

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010105

muted

#777779

Preview Lab

Preview with #0A1027

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

Preview Lab → · Contrast checker → · Palette generator →