#101B0F
Closest named color: Rich Black (#0D1B2A). oklch(20.7% 0.028 142.5), rgb(16, 27, 15).
Aa
White text reads best on this color (17.71:1).
About this color
#101B0F is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.053 away. White text reads best on it, at 17.71:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.71:1 |
Values
| HEX | #101B0F |
| RGB | rgb(16, 27, 15) |
| HSL | hsl(115, 29%, 8%) |
| OKLCH | oklch(20.7% 0.028 142.5) |
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 #101B0F | 17.71:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #101B0F | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #101B0F text on white | 17.71:1 | AAA | Lc 104.5 | Preferred for body text |
| #101B0F text on black | 1.18:1 | 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
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D2DCD1
oklch(88.4% 0.018 142.8)
-
Step 300
300
#B5C6B3
oklch(80.8% 0.032 142.3)
-
Step 400
400
#8EAA8B
oklch(70.8% 0.054 142.4)
-
Step 500
500
#72946E
oklch(63% 0.068 142)
-
Step 600
600
#5A7F56
oklch(55.7% 0.075 142.1)
-
Step 700
700
#496B46
oklch(49.1% 0.07 142.5)
-
Step 800
800
#3C573A
oklch(42.6% 0.057 142.8)
-
Step 900
900
#344832
oklch(37.8% 0.045 142.4)
-
Step 950
950 (this color)
#101B0F
oklch(20.7% 0.028 142.5)
#101B0F 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) | #1C190E | 0.022 |
| Deuteranopia (no green cones) | #1A1810 | 0.021 |
| Tritanopia (no blue cones) | #0F1A18 | 0.019 |
| Achromatopsia (no color) | #181818 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101B0F
#101B0F
oklch(20.7% 0.028 142.5)
- #1E131F
#1E131F
oklch(20.7% 0.029 323.7)
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 #101B0F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.053
- Rich Navy #001219 ΔE 0.054
- Almost Black #070D0D ΔE 0.060
- Jet #212529 ΔE 0.063
- Dark #1B2431 ΔE 0.069
- Dark Brown #341C02 ΔE 0.072
- Dark Forest Green #002D04 ΔE 0.075
- Very Dark Green #062E03 ΔE 0.078
Use #101B0F 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.