#100D2D
Closest named color: Rich Black (#0D1B2A). oklch(18.6% 0.062 282.8), rgb(16, 13, 45).
Aa
White text reads best on this color (18.79:1).
About this color
#100D2D is a very dark, muted purple. In OKLCH its lightness is 19%, its chroma 0.062 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.049 away. White text reads best on it, at 18.79:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.11:1 |
| White text | 18.79:1 |
Values
| HEX | #100D2D |
| RGB | rgb(16, 13, 45) |
| HSL | hsl(246, 55%, 11%) |
| OKLCH | oklch(18.6% 0.062 282.8) |
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 #100D2D | 18.79:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #100D2D | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #100D2D text on white | 18.79:1 | AAA | Lc 105.2 | Preferred for body text |
| #100D2D text on black | 1.11:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F8
oklch(93.5% 0.022 283.1)
-
Step 200
200
#D5D6F4
oklch(88.5% 0.041 284)
-
Step 300
300
#B9BBEF
oklch(80.8% 0.073 282.9)
-
Step 400
400
#9697E8
oklch(70.8% 0.117 282.4)
-
Step 500
500
#7E7AE1
oklch(63% 0.152 282.9)
-
Step 600
600
#6961CE
oklch(55.6% 0.163 283)
-
Step 700
700
#5750B3
oklch(49.2% 0.152 282.4)
-
Step 800
800
#474291
oklch(42.7% 0.126 282.5)
-
Step 900
900
#3B3873
oklch(37.6% 0.098 282.9)
-
Step 950
950 (this color)
#100D2D
oklch(18.6% 0.062 282.8)
#100D2D 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) | #00132E | 0.030 |
| Deuteranopia (no green cones) | #00112C | 0.029 |
| Tritanopia (no blue cones) | #05141B | 0.051 |
| Achromatopsia (no color) | #121212 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100D2D
#100D2D
oklch(18.6% 0.062 282.8)
- #161300
#161300
oklch(18.5% 0.039 102.4)
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 #100D2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.049
- Dark Navy #000435 ΔE 0.049
- Midnight #03012D ΔE 0.053
- Navy Blue #001146 ΔE 0.055
- Dark Navy Blue #00022E ΔE 0.056
- Rich Navy #001219 ΔE 0.056
- Very Dark Blue #000133 ΔE 0.058
- Night Blue #040348 ΔE 0.062
Use #100D2D 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.