#0F1125
Closest named color: Rich Black (#0D1B2A). oklch(18.8% 0.041 277.4), rgb(15, 17, 37).
Aa
White text reads best on this color (18.63:1).
About this color
#0F1125 is a very dark, muted blue. In OKLCH its lightness is 19%, its chroma 0.041 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.035 away. White text reads best on it, at 18.63:1.
| Hue family | Blues |
| Lightness | very dark (19%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.12:1 |
| White text | 18.63:1 |
Values
| HEX | #0F1125 |
| RGB | rgb(15, 17, 37) |
| HSL | hsl(235, 42%, 10%) |
| OKLCH | oklch(18.8% 0.041 277.4) |
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 #0F1125 | 18.63:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #0F1125 | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #0F1125 text on white | 18.63:1 | AAA | Lc 105.1 | Preferred for body text |
| #0F1125 text on black | 1.12:1 | 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
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EB
oklch(88.5% 0.026 276.4)
-
Step 300
300
#B8BEE0
oklch(80.8% 0.048 277.4)
-
Step 400
400
#949CD1
oklch(70.6% 0.078 277.6)
-
Step 500
500
#7B83C4
oklch(63% 0.098 277.8)
-
Step 600
600
#646CB1
oklch(55.5% 0.107 277.3)
-
Step 700
700
#535A98
oklch(49.1% 0.099 277.2)
-
Step 800
800
#444A7B
oklch(42.7% 0.081 277.1)
-
Step 900
900
#393E63
oklch(37.7% 0.064 277)
-
Step 950
950 (this color)
#0F1125
oklch(18.8% 0.041 277.4)
#0F1125 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) | #091426 | 0.013 |
| Deuteranopia (no green cones) | #081225 | 0.012 |
| Tritanopia (no blue cones) | #071519 | 0.035 |
| Achromatopsia (no color) | #131313 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F1125
#0F1125
oklch(18.8% 0.041 277.4)
- #181300
#181300
oklch(18.7% 0.039 97.3)
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 #0F1125, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.035
- Rich Navy #001219 ΔE 0.039
- Almost Black #070D0D ΔE 0.053
- Dark Navy #000435 ΔE 0.063
- Midnight #03012D ΔE 0.066
- Navy Blue #001146 ΔE 0.068
- Dark Navy Blue #00022E ΔE 0.068
- Very Dark Blue #000133 ΔE 0.072
Use #0F1125 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.