#0F1E21
Closest named color: Rich Black (#0D1B2A). oklch(22.3% 0.021 211.7), rgb(15, 30, 33).
Aa
White text reads best on this color (17.10:1).
About this color
#0F1E21 is a very dark close to neutral grey. In OKLCH its lightness is 22%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.024 away. White text reads best on it, at 17.10:1.
| Hue family | Neutrals |
| Lightness | very dark (22%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.10:1 |
Values
| HEX | #0F1E21 |
| RGB | rgb(15, 30, 33) |
| HSL | hsl(190, 38%, 9%) |
| OKLCH | oklch(22.3% 0.021 211.7) |
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 #0F1E21 | 17.10:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #0F1E21 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #0F1E21 text on white | 17.10:1 | AAA | Lc 104.0 | Preferred for body text |
| #0F1E21 text on black | 1.22:1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#CFDCDE
oklch(88.5% 0.014 207.9)
-
Step 300
300
#AFC5CA
oklch(80.8% 0.025 212.9)
-
Step 400
400
#84A8AF
oklch(70.7% 0.041 210.8)
-
Step 500
500
#64929C
oklch(63.1% 0.052 212.7)
-
Step 600
600
#4A7C86
oklch(55.5% 0.056 211.8)
-
Step 700
700
#3B6972
oklch(49.2% 0.052 211.6)
-
Step 800
800
#31555D
oklch(42.6% 0.043 213.5)
-
Step 900
900
#2C474C
oklch(37.8% 0.034 210.4)
-
Step 950
950 (this color)
#0F1E21
oklch(22.3% 0.021 211.7)
#0F1E21 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) | #1B1D21 | 0.019 |
| Deuteranopia (no green cones) | #191B21 | 0.018 |
| Tritanopia (no blue cones) | #081F1F | 0.010 |
| Achromatopsia (no color) | #1C1C1C | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F1E21
#0F1E21
oklch(22.3% 0.021 211.7)
- #241815
#241815
oklch(22.3% 0.02 34.5)
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 #0F1E21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.024
- Dark #1B2431 ΔE 0.040
- Jet #212529 ΔE 0.042
- Rich Navy #001219 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.057
- Almost Black #070D0D ΔE 0.072
- Dark Brown #341C02 ΔE 0.079
- Dark Forest Green #002D04 ΔE 0.085
Use #0F1E21 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.