#0A0548#0A0548

#0A0548 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.8% C 0.115 H 272.4°. Best body text is #FFFFFF at 18.61:1 contrast (WCAG AA passes).

Color values

HEX	#0A0548
RGB	rgb(10, 5, 72)
HSL	hsl(244, 87%, 15%)
HSV	hsv(244, 93%, 28%)
CMYK	cmyk(86.1%, 93.1%, 0%, 71.8%)
CIE-LAB	lab(5.79, 27.14, -39.30)
CIE-LCH	lch(5.79, 47.76, 304.62°)
OKLab	oklab(19.83% 0.0048 -0.1149)
OKLCH	oklch(19.83% 0.115 272.4)
XYZ	xyz(1.3488, 0.6408, 6.1822)
Luminance	0.0064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0548 #434805

analogous

#052148 #0A0548 #2C0548

triadic

#0A0548 #480A05 #05480A

tetradic

#0A0548 #480521 #434805 #05482C

square

#0A0548 #480521 #434805 #05482C

split-complementary

#0A0548 #482C05 #214805

monochromatic

#04021D #04021D #0A0548 #120981 #1A0DBA

Accessibility & contrast

On white

18.61

#0A0548 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0A0548 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0548

18.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0548	#FFFFFF	#000000	##FFFFFF
##0A0548	1.00	18.61	1.13	18.61
#FFFFFF	18.61	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00164A

Deuteranopia (green-blind)

#000F47

Tritanopia (blue-blind)

#001B28

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0a0548;
/* rgb */ color: rgb(10, 5, 72);
/* oklch */ color: oklch(19.8% 0.115 272.4);

Tailwind

colors: {
  custom: {
    50: '#57477c',
    500: '#0a0548',
    950: '#000000',
  },
}

SCSS

$custom: #0a0548;
$custom-light: #57477c;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0548",
  "rgb": {
    "r": 10,
    "g": 5,
    "b": 72
  },
  "hsl": {
    "h": 244.478,
    "s": 87.013,
    "l": 15.098
  },
  "oklch": {
    "l": 0.19833,
    "c": 0.11498,
    "h": 272.4
  },
  "luminance": 0.00641
}

Semantic roles & 50–950 ramp

primary

#0A0548

secondary

#808821

accent

#FD2BED

background

#F5F4F7

surface

#E9E6EE

border

#C5C2C9

text

#040009

muted

#79777B

Preview Lab

Preview with #0A0548

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

Preview Lab → · Contrast checker → · Palette generator →