#0F151E
Closest named color: Rich Black (#0D1B2A). oklch(19.4% 0.021 258.3), rgb(15, 21, 30).
Aa
White text reads best on this color (18.31:1).
About this color
#0F151E is a very dark close to neutral grey. In OKLCH its lightness is 19%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.028 away. White text reads best on it, at 18.31:1.
| Hue family | Neutrals |
| Lightness | very dark (19%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.31:1 |
Values
| HEX | #0F151E |
| RGB | rgb(15, 21, 30) |
| HSL | hsl(216, 33%, 9%) |
| OKLCH | oklch(19.4% 0.021 258.3) |
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 #0F151E | 18.31:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #0F151E | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #0F151E text on white | 18.31:1 | AAA | Lc 105.0 | Preferred for body text |
| #0F151E text on black | 1.14:1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D4DAE2
oklch(88.6% 0.013 255.5)
-
Step 300
300
#B7C1D1
oklch(80.8% 0.025 259.8)
-
Step 400
400
#92A2B9
oklch(70.7% 0.038 257.4)
-
Step 500
500
#778BA8
oklch(63.1% 0.05 257.6)
-
Step 600
600
#607493
oklch(55.5% 0.054 259)
-
Step 700
700
#4F627D
oklch(49.1% 0.049 257.2)
-
Step 800
800
#415066
oklch(42.8% 0.041 257.9)
-
Step 900
900
#374253
oklch(37.6% 0.033 259)
-
Step 950
950 (this color)
#0F151E
oklch(19.4% 0.021 258.3)
#0F151E 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) | #12151E | 0.005 |
| Deuteranopia (no green cones) | #10141E | 0.004 |
| Tritanopia (no blue cones) | #0A1718 | 0.019 |
| Achromatopsia (no color) | #151515 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F151E
#0F151E
oklch(19.4% 0.021 258.3)
- #1A140A
#1A140A
oklch(19.5% 0.021 79.8)
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 #0F151E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.028
- Rich Navy #001219 ΔE 0.031
- Almost Black #070D0D ΔE 0.046
- Dark #1B2431 ΔE 0.064
- Jet #212529 ΔE 0.069
- Oxford Blue #1B263B ΔE 0.078
- Very Dark Brown #1D0200 ΔE 0.082
- Dark Navy #000435 ΔE 0.083
Use #0F151E 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.