#0F1825
Closest named color: Rich Black (#0D1B2A). oklch(20.7% 0.029 257.5), rgb(15, 24, 37).
Aa
White text reads best on this color (17.83:1).
About this color
#0F1825 is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.013 away. White text reads best on it, at 17.83:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.83:1 |
Values
| HEX | #0F1825 |
| RGB | rgb(15, 24, 37) |
| HSL | hsl(215, 42%, 10%) |
| OKLCH | oklch(20.7% 0.029 257.5) |
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 #0F1825 | 17.83:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #0F1825 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #0F1825 text on white | 17.83:1 | AAA | Lc 104.6 | Preferred for body text |
| #0F1825 text on black | 1.17:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE6
oklch(88.5% 0.019 255.5)
-
Step 300
300
#B3C2D7
oklch(80.9% 0.034 256.8)
-
Step 400
400
#8BA2C4
oklch(70.7% 0.056 258)
-
Step 500
500
#6E8BB5
oklch(63.1% 0.072 257.6)
-
Step 600
600
#5675A0
oklch(55.7% 0.076 256.7)
-
Step 700
700
#466289
oklch(49.1% 0.071 256.8)
-
Step 800
800
#3A506F
oklch(42.7% 0.059 257)
-
Step 900
900
#32425A
oklch(37.6% 0.046 258.3)
-
Step 950
950 (this color)
#0F1825
oklch(20.7% 0.029 257.5)
#0F1825 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) | #131926 | 0.008 |
| Deuteranopia (no green cones) | #111725 | 0.005 |
| Tritanopia (no blue cones) | #071B1D | 0.025 |
| Achromatopsia (no color) | #181818 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F1825
#0F1825
oklch(20.7% 0.029 257.5)
- #1F1607
#1F1607
oklch(20.7% 0.03 79.2)
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 #0F1825, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.013
- Rich Navy #001219 ΔE 0.042
- Dark #1B2431 ΔE 0.051
- Jet #212529 ΔE 0.058
- Almost Black #070D0D ΔE 0.061
- Oxford Blue #1B263B ΔE 0.063
- Navy Blue #001146 ΔE 0.073
- Dark Navy #000435 ΔE 0.082
Use #0F1825 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.