#100901
Closest named color: Almost Black (#070D0D). oklch(14.6% 0.026 80.4), rgb(16, 9, 1).
Aa
White text reads best on this color (19.78:1).
About this color
#100901 is a very dark close to neutral grey. In OKLCH its lightness is 15%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.032 away. White text reads best on it, at 19.78:1.
| Hue family | Neutrals |
| Lightness | very dark (15%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.06:1 |
| White text | 19.78:1 |
Values
| HEX | #100901 |
| RGB | rgb(16, 9, 1) |
| HSL | hsl(32, 88%, 3%) |
| OKLCH | oklch(14.6% 0.026 80.4) |
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 #100901 | 19.78:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #100901 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #100901 text on white | 19.78:1 | AAA | Lc 105.8 | Preferred for body text |
| #100901 text on black | 1.06:1 | 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
#F7F5F2
oklch(97.1% 0.005 78.3)
-
Step 100
100
#EDE9E3
oklch(93.5% 0.009 78.3)
-
Step 200
200
#DFD8CD
oklch(88.5% 0.017 79.3)
-
Step 300
300
#CBBFAB
oklch(80.9% 0.031 80.6)
-
Step 400
400
#B19E7E
oklch(70.8% 0.05 80.6)
-
Step 500
500
#9E865D
oklch(63.2% 0.064 80.5)
-
Step 600
600
#886F43
oklch(55.6% 0.069 80.7)
-
Step 700
700
#745D34
oklch(49.2% 0.065 80.8)
-
Step 800
800
#5E4C2C
oklch(42.7% 0.053 81)
-
Step 900
900
#4D3F28
oklch(37.6% 0.041 79.4)
-
Step 950
950 (this color)
#100901
oklch(14.6% 0.026 80.4)
#100901 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) | #0C0901 | 0.010 |
| Deuteranopia (no green cones) | #0D0B01 | 0.010 |
| Tritanopia (no blue cones) | #120707 | 0.024 |
| Achromatopsia (no color) | #0A0A0A | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100901
#100901
oklch(14.6% 0.026 80.4)
- #050A15
#050A15
oklch(14.5% 0.026 261.8)
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 #100901, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.032
- Very Dark Brown #1D0200 ΔE 0.041
- Rich Navy #001219 ΔE 0.059
- Rich Black #0D1B2A ΔE 0.094
- Dark Brown #341C02 ΔE 0.111
- Dark Maroon #3C0008 ΔE 0.113
- Midnight #03012D ΔE 0.114
- Dark Navy Blue #00022E ΔE 0.116
Use #100901 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.