#0A053F#0A053F

#0A053F is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.6% C 0.103 H 274.3°. Best body text is #FFFFFF at 18.98:1 contrast (WCAG AA passes).

Color values

HEX	#0A053F
RGB	rgb(10, 5, 63)
HSL	hsl(245, 85%, 13%)
HSV	hsv(245, 92%, 25%)
CMYK	cmyk(84.1%, 92.1%, 0%, 75.3%)
CIE-LAB	lab(4.80, 22.61, -34.53)
CIE-LCH	lch(4.80, 41.27, 303.22°)
OKLab	oklab(18.57% 0.0077 -0.1026)
OKLCH	oklch(18.57% 0.103 274.3)
XYZ	xyz(1.0764, 0.5318, 4.7476)
Luminance	0.0053 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Night Blue

#040348

ΔE00 2.44

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A053F #3A3F05

analogous

#051D3F #0A053F #27053F

triadic

#0A053F #3F0A05 #053F0A

tetradic

#0A053F #3F051D #3A3F05 #053F27

square

#0A053F #3F051D #3A3F05 #053F27

split-complementary

#0A053F #3F2705 #1D3F05

monochromatic

#04021C #04021C #0A053F #130978 #1C0EB0

Accessibility & contrast

On white

18.98

#0A053F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#0A053F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A053F

18.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A053F	#FFFFFF	#000000	##FFFFFF
##0A053F	1.00	18.98	1.11	18.98
#FFFFFF	18.98	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001341

Deuteranopia (green-blind)

#000E3E

Tritanopia (blue-blind)

#001722

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #0a053f;
/* rgb */ color: rgb(10, 5, 63);
/* oklch */ color: oklch(18.6% 0.103 274.3);

Tailwind

colors: {
  custom: {
    50: '#534775',
    500: '#0a053f',
    950: '#000000',
  },
}

SCSS

$custom: #0a053f;
$custom-light: #534775;
$custom-dark: #000000;

JSON

{
  "hex": "#0a053f",
  "rgb": {
    "r": 10,
    "g": 5,
    "b": 63
  },
  "hsl": {
    "h": 245.172,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.18568,
    "c": 0.1029,
    "h": 274.3
  },
  "luminance": 0.00532
}

Semantic roles & 50–950 ramp

primary

#0A053F

secondary

#778020

accent

#FC2CEA

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #0A053F

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

Preview Lab → · Contrast checker → · Palette generator →