#05091C
Closest named color: Rich Navy (#001219). oklch(14.8% 0.042 269.7), rgb(5, 9, 28).
Aa
White text reads best on this color (19.76:1).
About this color
#05091C is a very dark, muted blue. In OKLCH its lightness is 15%, its chroma 0.042 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.037 away. White text reads best on it, at 19.76:1.
| Hue family | Blues |
| Lightness | very dark (15%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.06:1 |
| White text | 19.76:1 |
Values
| HEX | #05091C |
| RGB | rgb(5, 9, 28) |
| HSL | hsl(230, 70%, 6%) |
| OKLCH | oklch(14.8% 0.042 269.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #05091C | 19.76:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #05091C | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #05091C text on white | 19.76:1 | AAA | Lc 105.8 | Preferred for body text |
| #05091C text on black | 1.06:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D2D9EC
oklch(88.6% 0.027 269.6)
-
Step 300
300
#B4C0E1
oklch(80.9% 0.049 269.5)
-
Step 400
400
#8D9FD3
oklch(70.8% 0.079 269.6)
-
Step 500
500
#7186C7
oklch(63.1% 0.101 269.7)
-
Step 600
600
#5A6FB3
oklch(55.6% 0.109 269.6)
-
Step 700
700
#4A5D9A
oklch(49.2% 0.101 269.4)
-
Step 800
800
#3D4C7D
oklch(42.7% 0.084 269.7)
-
Step 900
900
#343F65
oklch(37.6% 0.067 270.7)
-
Step 950
950 (this color)
#05091C
oklch(14.8% 0.042 269.7)
#05091C with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #020B1D | 0.009 |
| Deuteranopia (no green cones) | #01091C | 0.011 |
| Tritanopia (no blue cones) | #000D11 | 0.034 |
| Achromatopsia (no color) | #0A0A0A | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05091C
#05091C
oklch(14.8% 0.042 269.7)
- #100A00
#100A00
oklch(14.9% 0.03 89.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #05091C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.037
- Almost Black #070D0D ΔE 0.040
- Midnight #03012D ΔE 0.047
- Dark Navy Blue #00022E ΔE 0.049
- Dark Navy #000435 ΔE 0.056
- Very Dark Blue #000133 ΔE 0.057
- Rich Black #0D1B2A ΔE 0.071
- Very Dark Brown #1D0200 ΔE 0.085
Use #05091C in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.