#100508
Closest named color: Almost Black (#070D0D). oklch(13.6% 0.023 359.9), rgb(16, 5, 8).
Aa
White text reads best on this color (20.05:1).
About this color
#100508 is a very dark close to neutral grey. In OKLCH its lightness is 14%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.037 away. White text reads best on it, at 20.05:1.
| Hue family | Neutrals |
| Lightness | very dark (14%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.04:1 |
| White text | 20.05:1 |
Values
| HEX | #100508 |
| RGB | rgb(16, 5, 8) |
| HSL | hsl(344, 52%, 4%) |
| OKLCH | oklch(13.6% 0.023 359.9) |
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 #100508 | 20.05:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #100508 | 1.04:1 | Fails | Lc 0.0 | Not readable |
| #100508 text on white | 20.05:1 | AAA | Lc 105.9 | Preferred for body text |
| #100508 text on black | 1.04:1 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#EFE8E9
oklch(93.7% 0.008 7.3)
-
Step 200
200
#E2D5D9
oklch(88.5% 0.015 356.7)
-
Step 300
300
#D1BAC0
oklch(81% 0.027 0.1)
-
Step 400
400
#B9969F
oklch(70.8% 0.043 1.1)
-
Step 500
500
#A77C88
oklch(63.2% 0.056 0.4)
-
Step 600
600
#926472
oklch(55.6% 0.062 359.5)
-
Step 700
700
#7C535F
oklch(49.1% 0.057 0.3)
-
Step 800
800
#65444E
oklch(42.7% 0.048 359.5)
-
Step 900
900
#523941
oklch(37.6% 0.037 358.1)
-
Step 950
950 (this color)
#100508
oklch(13.6% 0.023 359.9)
#100508 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) | #060708 | 0.026 |
| Deuteranopia (no green cones) | #090908 | 0.024 |
| Tritanopia (no blue cones) | #120406 | 0.008 |
| Achromatopsia (no color) | #080808 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100508
#100508
oklch(13.6% 0.023 359.9)
- #000B09
#000B09
oklch(13.4% 0.024 183.9)
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 #100508, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.037
- Very Dark Brown #1D0200 ΔE 0.040
- Rich Navy #001219 ΔE 0.061
- Midnight #03012D ΔE 0.091
- Rich Black #0D1B2A ΔE 0.095
- Dark Navy Blue #00022E ΔE 0.095
- Dark Navy #000435 ΔE 0.103
- Very Dark Blue #000133 ΔE 0.104
Use #100508 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.