#100709
Closest named color: Almost Black (#070D0D). oklch(14.3% 0.017 3.5), rgb(16, 7, 9).
Aa
White text reads best on this color (19.87:1).
About this color
#100709 is a very dark close to neutral grey. In OKLCH its lightness is 14%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.029 away. White text reads best on it, at 19.87:1.
| Hue family | Neutrals |
| Lightness | very dark (14%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.05:1 |
| White text | 19.87:1 |
Values
| HEX | #100709 |
| RGB | rgb(16, 7, 9) |
| HSL | hsl(347, 39%, 5%) |
| OKLCH | oklch(14.3% 0.017 3.5) |
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 #100709 | 19.87:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #100709 | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #100709 text on white | 19.87:1 | AAA | Lc 105.8 | Preferred for body text |
| #100709 text on black | 1.05:1 | 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
#F7F5F5
oklch(97.2% 0.002 17.2)
-
Step 100
100
#EEE8E9
oklch(93.6% 0.007 5.6)
-
Step 200
200
#E0D6D8
oklch(88.5% 0.011 3.5)
-
Step 300
300
#CDBBBF
oklch(80.8% 0.021 2.4)
-
Step 400
400
#B3989E
oklch(70.6% 0.033 3)
-
Step 500
500
#A07F87
oklch(63% 0.042 2.2)
-
Step 600
600
#8B6870
oklch(55.5% 0.046 3.5)
-
Step 700
700
#76575E
oklch(49.1% 0.042 3.8)
-
Step 800
800
#60474D
oklch(42.7% 0.035 2.8)
-
Step 900
900
#4F3C40
oklch(37.8% 0.027 4.4)
-
Step 950
950 (this color)
#100709
oklch(14.3% 0.017 3.5)
#100709 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) | #080809 | 0.019 |
| Deuteranopia (no green cones) | #0A0A09 | 0.018 |
| Tritanopia (no blue cones) | #120708 | 0.005 |
| Achromatopsia (no color) | #090909 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100709
#100709
oklch(14.3% 0.017 3.5)
- #030C0A
#030C0A
oklch(14.3% 0.017 181)
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 #100709, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.029
- Very Dark Brown #1D0200 ΔE 0.041
- Rich Navy #001219 ΔE 0.053
- Rich Black #0D1B2A ΔE 0.087
- Midnight #03012D ΔE 0.090
- Dark Navy Blue #00022E ΔE 0.094
- Dark Navy #000435 ΔE 0.101
- Very Dark Blue #000133 ΔE 0.103
Use #100709 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.