#0F0B21
Closest named color: Rich Navy (#001219). oklch(16.9% 0.045 289.1), rgb(15, 11, 33).
Aa
White text reads best on this color (19.26:1).
About this color
#0F0B21 is a very dark, muted purple. In OKLCH its lightness is 17%, its chroma 0.045 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.043 away. White text reads best on it, at 19.26:1.
| Hue family | Purples |
| Lightness | very dark (17%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.09:1 |
| White text | 19.26:1 |
Values
| HEX | #0F0B21 |
| RGB | rgb(15, 11, 33) |
| HSL | hsl(251, 50%, 9%) |
| OKLCH | oklch(16.9% 0.045 289.1) |
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 #0F0B21 | 19.26:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #0F0B21 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #0F0B21 text on white | 19.26:1 | AAA | Lc 105.5 | Preferred for body text |
| #0F0B21 text on black | 1.09:1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D8D6EC
oklch(88.4% 0.03 289.9)
-
Step 300
300
#BFBCE1
oklch(81% 0.052 288.9)
-
Step 400
400
#9F98D2
oklch(70.7% 0.084 289.6)
-
Step 500
500
#887EC6
oklch(63.1% 0.107 289.3)
-
Step 600
600
#7266B3
oklch(55.6% 0.117 289.2)
-
Step 700
700
#60549A
oklch(49% 0.11 289.6)
-
Step 800
800
#4E457D
oklch(42.6% 0.091 289.3)
-
Step 900
900
#413B64
oklch(37.8% 0.069 289.4)
-
Step 950
950 (this color)
#0F0B21
oklch(16.9% 0.045 289.1)
#0F0B21 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) | #040F22 | 0.023 |
| Deuteranopia (no green cones) | #040E20 | 0.023 |
| Tritanopia (no blue cones) | #0A1014 | 0.038 |
| Achromatopsia (no color) | #0E0E0E | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F0B21
#0F0B21
oklch(16.9% 0.045 289.1)
- #111000
#111000
oklch(16.9% 0.036 107.1)
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 #0F0B21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.043
- Almost Black #070D0D ΔE 0.049
- Midnight #03012D ΔE 0.055
- Rich Black #0D1B2A ΔE 0.056
- Dark Navy Blue #00022E ΔE 0.059
- Dark Navy #000435 ΔE 0.059
- Very Dark Blue #000133 ΔE 0.064
- Midnight Purple #280137 ΔE 0.075
Use #0F0B21 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.