#0C0F29
Closest named color: Rich Black (#0D1B2A). oklch(18.3% 0.053 275), rgb(12, 15, 41).
Aa
White text reads best on this color (18.81:1).
About this color
#0C0F29 is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.053 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.043 away. White text reads best on it, at 18.81:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.11:1 |
| White text | 18.81:1 |
Values
| HEX | #0C0F29 |
| RGB | rgb(12, 15, 41) |
| HSL | hsl(234, 55%, 10%) |
| OKLCH | oklch(18.3% 0.053 275) |
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 #0C0F29 | 18.81:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #0C0F29 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #0C0F29 text on white | 18.81:1 | AAA | Lc 105.2 | Preferred for body text |
| #0C0F29 text on black | 1.11:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D2D8F1
oklch(88.5% 0.035 274.9)
-
Step 300
300
#B4BEE9
oklch(80.8% 0.062 274.7)
-
Step 400
400
#8E9CDF
oklch(70.8% 0.099 274.5)
-
Step 500
500
#7482D6
oklch(63.2% 0.127 275)
-
Step 600
600
#5D6AC3
oklch(55.7% 0.138 274.8)
-
Step 700
700
#4D57A8
oklch(49% 0.129 275.3)
-
Step 800
800
#3F4888
oklch(42.7% 0.106 275)
-
Step 900
900
#353D6D
oklch(37.7% 0.082 274.6)
-
Step 950
950 (this color)
#0C0F29
oklch(18.3% 0.053 275)
#0C0F29 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) | #03132A | 0.018 |
| Deuteranopia (no green cones) | #011028 | 0.020 |
| Tritanopia (no blue cones) | #01151A | 0.046 |
| Achromatopsia (no color) | #111111 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C0F29
#0C0F29
oklch(18.3% 0.053 275)
- #171200
#171200
oklch(18.3% 0.038 96.9)
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 #0C0F29, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.043
- Rich Navy #001219 ΔE 0.044
- Dark Navy #000435 ΔE 0.051
- Midnight #03012D ΔE 0.054
- Dark Navy Blue #00022E ΔE 0.056
- Navy Blue #001146 ΔE 0.059
- Very Dark Blue #000133 ΔE 0.059
- Almost Black #070D0D ΔE 0.060
Use #0C0F29 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.