#100B1C
Closest named color: Rich Navy (#001219). oklch(16.6% 0.035 295.9), rgb(16, 11, 28).
Aa
White text reads best on this color (19.32:1).
About this color
#100B1C is a very dark, muted purple. In OKLCH its lightness is 17%, its chroma 0.035 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.040 away. White text reads best on it, at 19.32:1.
| Hue family | Purples |
| Lightness | very dark (17%) |
| Chroma | muted (0.035) |
| Temperature | in between |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.08:1 |
| White text | 19.32:1 |
Values
| HEX | #100B1C |
| RGB | rgb(16, 11, 28) |
| HSL | hsl(258, 44%, 8%) |
| OKLCH | oklch(16.6% 0.035 295.9) |
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 #100B1C | 19.32:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #100B1C | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #100B1C text on white | 19.32:1 | AAA | Lc 105.6 | Preferred for body text |
| #100B1C text on black | 1.08:1 | 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EAE8F1
oklch(93.5% 0.012 296.3)
-
Step 200
200
#DAD6E7
oklch(88.4% 0.023 296.7)
-
Step 300
300
#C2BCD9
oklch(80.9% 0.041 295)
-
Step 400
400
#A499C6
oklch(70.8% 0.066 295.9)
-
Step 500
500
#8E7FB8
oklch(63.2% 0.086 295.9)
-
Step 600
600
#7868A4
oklch(55.7% 0.093 295.5)
-
Step 700
700
#65568C
oklch(49.1% 0.086 295.9)
-
Step 800
800
#524672
oklch(42.6% 0.073 295.7)
-
Step 900
900
#443B5C
oklch(37.6% 0.056 296.1)
-
Step 950
950 (this color)
#100B1C
oklch(16.6% 0.035 295.9)
#100B1C 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) | #060E1D | 0.021 |
| Deuteranopia (no green cones) | #070E1C | 0.020 |
| Tritanopia (no blue cones) | #0D0E12 | 0.028 |
| Achromatopsia (no color) | #0E0E0E | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100B1C
#100B1C
oklch(16.6% 0.035 295.9)
- #0E1001
#0E1001
oklch(16.5% 0.034 115.1)
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 #100B1C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.040
- Almost Black #070D0D ΔE 0.041
- Rich Black #0D1B2A ΔE 0.058
- Midnight #03012D ΔE 0.063
- Dark Navy Blue #00022E ΔE 0.067
- Dark Navy #000435 ΔE 0.068
- Very Dark Brown #1D0200 ΔE 0.070
- Very Dark Blue #000133 ΔE 0.073
Use #100B1C 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.