#100900
Closest named color: Almost Black (#070D0D). oklch(14.6% 0.03 84.6), rgb(16, 9, 0).
Aa
White text reads best on this color (19.79:1).
About this color
#100900 is a very dark close to neutral grey. In OKLCH its lightness is 15%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.035 away. White text reads best on it, at 19.79:1.
| Hue family | Neutrals |
| Lightness | very dark (15%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.06:1 |
| White text | 19.79:1 |
Values
| HEX | #100900 |
| RGB | rgb(16, 9, 0) |
| HSL | hsl(34, 100%, 3%) |
| OKLCH | oklch(14.6% 0.03 84.6) |
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 #100900 | 19.79:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #100900 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #100900 text on white | 19.79:1 | AAA | Lc 105.8 | Preferred for body text |
| #100900 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
#EDE9E2
oklch(93.5% 0.01 81.8)
-
Step 200
200
#DFD8CB
oklch(88.4% 0.019 83.1)
-
Step 300
300
#CBBFA7
oklch(80.8% 0.035 84.6)
-
Step 400
400
#B19E78
oklch(70.6% 0.057 84.4)
-
Step 500
500
#9E8655
oklch(63.1% 0.073 84.4)
-
Step 600
600
#89703A
oklch(55.7% 0.079 84.9)
-
Step 700
700
#745D2C
oklch(49.1% 0.073 84.3)
-
Step 800
800
#5E4C25
oklch(42.6% 0.061 84.9)
-
Step 900
900
#4D4023
oklch(37.8% 0.048 86)
-
Step 950
950 (this color)
#100900
oklch(14.6% 0.03 84.6)
#100900 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) | #0C0900 | 0.010 |
| Deuteranopia (no green cones) | #0E0B00 | 0.009 |
| Tritanopia (no blue cones) | #130706 | 0.026 |
| Achromatopsia (no color) | #0A0A0A | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100900
#100900
oklch(14.6% 0.03 84.6)
- #050A17
#050A17
oklch(14.7% 0.03 264.2)
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 #100900, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.035
- Very Dark Brown #1D0200 ΔE 0.042
- Rich Navy #001219 ΔE 0.062
- Rich Black #0D1B2A ΔE 0.097
- Dark Brown #341C02 ΔE 0.111
- Dark Maroon #3C0008 ΔE 0.114
- Midnight #03012D ΔE 0.118
- Dark Navy Blue #00022E ΔE 0.120
Use #100900 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.