#100D1E
Closest named color: Rich Navy (#001219). oklch(17.3% 0.035 290.4), rgb(16, 13, 30).
Aa
White text reads best on this color (19.11:1).
About this color
#100D1E is a very dark, muted purple. In OKLCH its lightness is 17%, its chroma 0.035 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.037 away. White text reads best on it, at 19.11:1.
| Hue family | Purples |
| Lightness | very dark (17%) |
| Chroma | muted (0.035) |
| Temperature | in between |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.09:1 |
| White text | 19.11:1 |
Values
| HEX | #100D1E |
| RGB | rgb(16, 13, 30) |
| HSL | hsl(251, 40%, 8%) |
| OKLCH | oklch(17.3% 0.035 290.4) |
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 #100D1E | 19.11:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #100D1E | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #100D1E text on white | 19.11:1 | AAA | Lc 105.5 | Preferred for body text |
| #100D1E text on black | 1.09:1 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E9F1
oklch(93.6% 0.011 286.2)
-
Step 200
200
#D8D7E8
oklch(88.5% 0.023 288.6)
-
Step 300
300
#C0BDDA
oklch(81% 0.041 290.2)
-
Step 400
400
#A09AC7
oklch(70.7% 0.065 290.7)
-
Step 500
500
#8981B9
oklch(63.2% 0.084 290.3)
-
Step 600
600
#7369A5
oklch(55.5% 0.092 290.7)
-
Step 700
700
#60588D
oklch(49.1% 0.084 289.9)
-
Step 800
800
#4F4873
oklch(42.8% 0.07 290.6)
-
Step 900
900
#413C5D
oklch(37.6% 0.056 290.4)
-
Step 950
950 (this color)
#100D1E
oklch(17.3% 0.035 290.4)
#100D1E 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) | #08101F | 0.017 |
| Deuteranopia (no green cones) | #080F1E | 0.016 |
| Tritanopia (no blue cones) | #0D1014 | 0.027 |
| Achromatopsia (no color) | #0F0F0F | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100D1E
#100D1E
oklch(17.3% 0.035 290.4)
- #111101
#111101
oklch(17.2% 0.034 109.5)
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 #100D1E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.037
- Almost Black #070D0D ΔE 0.042
- Rich Black #0D1B2A ΔE 0.051
- Midnight #03012D ΔE 0.064
- Dark Navy #000435 ΔE 0.067
- Dark Navy Blue #00022E ΔE 0.067
- Very Dark Blue #000133 ΔE 0.073
- Very Dark Brown #1D0200 ΔE 0.074
Use #100D1E 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.