#100B13
Closest named color: Almost Black (#070D0D). oklch(16% 0.018 312.5), rgb(16, 11, 19).
Aa
White text reads best on this color (19.45:1).
About this color
#100B13 is a very dark close to neutral grey. In OKLCH its lightness is 16%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.026 away. White text reads best on it, at 19.45:1.
| Hue family | Neutrals |
| Lightness | very dark (16%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.07:1 |
| White text | 19.45:1 |
Values
| HEX | #100B13 |
| RGB | rgb(16, 11, 19) |
| HSL | hsl(278, 27%, 6%) |
| OKLCH | oklch(16% 0.018 312.5) |
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 #100B13 | 19.45:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #100B13 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #100B13 text on white | 19.45:1 | AAA | Lc 105.7 | Preferred for body text |
| #100B13 text on black | 1.07:1 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EBE9ED
oklch(93.7% 0.006 308.4)
-
Step 200
200
#DCD7DF
oklch(88.5% 0.012 313.2)
-
Step 300
300
#C5BDCB
oklch(80.9% 0.021 311)
-
Step 400
400
#A89BB1
oklch(70.8% 0.035 311.6)
-
Step 500
500
#93829D
oklch(63.1% 0.044 313)
-
Step 600
600
#7D6B88
oklch(55.5% 0.049 312.6)
-
Step 700
700
#6A5973
oklch(49% 0.046 313.9)
-
Step 800
800
#56495E
oklch(42.7% 0.038 312.5)
-
Step 900
900
#473D4D
oklch(37.7% 0.03 312.8)
-
Step 950
950 (this color)
#100B13
oklch(16% 0.018 312.5)
#100B13 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) | #0A0D13 | 0.014 |
| Deuteranopia (no green cones) | #0B0D13 | 0.012 |
| Tritanopia (no blue cones) | #100C0E | 0.013 |
| Achromatopsia (no color) | #0D0D0D | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100B13
#100B13
oklch(16% 0.018 312.5)
- #0A0F07
#0A0F07
oklch(16% 0.019 133.4)
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 #100B13, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.026
- Rich Navy #001219 ΔE 0.037
- Very Dark Brown #1D0200 ΔE 0.055
- Rich Black #0D1B2A ΔE 0.065
- Midnight #03012D ΔE 0.077
- Dark Navy Blue #00022E ΔE 0.081
- Dark Navy #000435 ΔE 0.084
- Very Dark Blue #000133 ΔE 0.088
Use #100B13 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.