#0A0F43#0A0F43

#0A0F43 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.9% C 0.096 H 270.7°. Best body text is #FFFFFF at 18.07:1 contrast (WCAG AA passes).

Color values

HEX	#0A0F43
RGB	rgb(10, 15, 67)
HSL	hsl(235, 74%, 15%)
HSV	hsv(235, 85%, 26%)
CMYK	cmyk(85.1%, 77.6%, 0%, 73.7%)
CIE-LAB	lab(7.33, 19.29, -33.24)
CIE-LCH	lch(7.33, 38.44, 300.12°)
OKLab	oklab(20.89% 0.0011 -0.0963)
OKLCH	oklch(20.89% 0.096 270.7)
XYZ	xyz(1.3088, 0.8113, 5.3967)
Luminance	0.0081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 1.73

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0F43 #433E0A

analogous

#0A2B43 #0A0F43 #220A43

triadic

#0A0F43 #430A0F #0F430A

tetradic

#0A0F43 #430A2B #433E0A #0A4322

square

#0A0F43 #430A2B #433E0A #0A4322

split-complementary

#0A0F43 #43220A #2B430A

monochromatic

#04061B #04061B #0A0F43 #121B78 #1A27AE

Accessibility & contrast

On white

18.07

#0A0F43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#0A0F43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0F43

18.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0F43	#FFFFFF	#000000	##FFFFFF
##0A0F43	1.00	18.07	1.16	18.07
#FFFFFF	18.07	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001945

Deuteranopia (green-blind)

#001342

Tritanopia (blue-blind)

#001D27

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #0a0f43;
/* rgb */ color: rgb(10, 15, 67);
/* oklch */ color: oklch(20.9% 0.096 270.7);

Tailwind

colors: {
  custom: {
    50: '#554d78',
    500: '#0a0f43',
    950: '#000000',
  },
}

SCSS

$custom: #0a0f43;
$custom-light: #554d78;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0f43",
  "rgb": {
    "r": 10,
    "g": 15,
    "b": 67
  },
  "hsl": {
    "h": 234.737,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.20886,
    "c": 0.09632,
    "h": 270.7
  },
  "luminance": 0.00811
}

Semantic roles & 50–950 ramp

primary

#0A0F43

secondary

#807829

accent

#E037F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0A0F43

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

Preview Lab → · Contrast checker → · Palette generator →