#0F1820
Closest named color: Rich Black (#0D1B2A). oklch(20.4% 0.021 245.9), rgb(15, 24, 32).
Aa
White text reads best on this color (17.92:1).
About this color
#0F1820 is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.020 away. White text reads best on it, at 17.92:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.92:1 |
Values
| HEX | #0F1820 |
| RGB | rgb(15, 24, 32) |
| HSL | hsl(208, 36%, 9%) |
| OKLCH | oklch(20.4% 0.021 245.9) |
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 #0F1820 | 17.92:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #0F1820 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #0F1820 text on white | 17.92:1 | AAA | Lc 104.7 | Preferred for body text |
| #0F1820 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE2
oklch(88.5% 0.014 248)
-
Step 300
300
#B4C3D0
oklch(81% 0.025 244.2)
-
Step 400
400
#8DA4B8
oklch(70.8% 0.039 244.6)
-
Step 500
500
#718DA7
oklch(63.1% 0.051 246.7)
-
Step 600
600
#597792
oklch(55.7% 0.055 246.1)
-
Step 700
700
#48647C
oklch(49.1% 0.051 245)
-
Step 800
800
#3C5265
oklch(42.8% 0.042 245.1)
-
Step 900
900
#334452
oklch(37.8% 0.032 243.6)
-
Step 950
950 (this color)
#0F1820
oklch(20.4% 0.021 245.9)
#0F1820 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) | #151820 | 0.010 |
| Deuteranopia (no green cones) | #131620 | 0.009 |
| Tritanopia (no blue cones) | #091A1B | 0.017 |
| Achromatopsia (no color) | #171717 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F1820
#0F1820
oklch(20.4% 0.021 245.9)
- #1E150D
#1E150D
oklch(20.5% 0.021 62.9)
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 #0F1820, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.020
- Rich Navy #001219 ΔE 0.038
- Almost Black #070D0D ΔE 0.054
- Dark #1B2431 ΔE 0.054
- Jet #212529 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.069
- Navy Blue #001146 ΔE 0.083
- Dark Navy #000435 ΔE 0.088
Use #0F1820 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.