#101911
Closest named color: Rich Navy (#001219). oklch(20.1% 0.021 147.7), rgb(16, 25, 17).
Aa
White text reads best on this color (17.96:1).
About this color
#101911 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 Navy (#001219), ΔE 0.046 away. White text reads best on it, at 17.96:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.16:1 |
| White text | 17.96:1 |
Values
| HEX | #101911 |
| RGB | rgb(16, 25, 17) |
| HSL | hsl(127, 22%, 8%) |
| OKLCH | oklch(20.1% 0.021 147.7) |
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 #101911 | 17.96:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #101911 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #101911 text on white | 17.96:1 | AAA | Lc 104.7 | Preferred for body text |
| #101911 text on black | 1.16:1 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D3DCD4
oklch(88.5% 0.015 148.8)
-
Step 300
300
#B7C5B8
oklch(80.9% 0.024 147.4)
-
Step 400
400
#91A893
oklch(70.8% 0.04 147.6)
-
Step 500
500
#769278
oklch(63.1% 0.05 146.9)
-
Step 600
600
#5E7C61
oklch(55.5% 0.054 147.4)
-
Step 700
700
#4D6950
oklch(49.1% 0.052 147.5)
-
Step 800
800
#405542
oklch(42.6% 0.04 147.3)
-
Step 900
900
#364738
oklch(37.8% 0.033 148.1)
-
Step 950
950 (this color)
#101911
oklch(20.1% 0.021 147.7)
#101911 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) | #191711 | 0.017 |
| Deuteranopia (no green cones) | #181611 | 0.018 |
| Tritanopia (no blue cones) | #0F1917 | 0.012 |
| Achromatopsia (no color) | #171717 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101911
#101911
oklch(20.1% 0.021 147.7)
- #1C131B
#1C131B
oklch(20.2% 0.021 330.1)
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 #101911, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.048
- Almost Black #070D0D ΔE 0.052
- Jet #212529 ΔE 0.065
- Dark #1B2431 ΔE 0.069
- Dark Brown #341C02 ΔE 0.076
- Very Dark Brown #1D0200 ΔE 0.082
- Dark Forest Green #002D04 ΔE 0.084
Use #101911 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.