#100D2A
Closest named color: Rich Black (#0D1B2A). oklch(18.3% 0.057 283.9), rgb(16, 13, 42).
Aa
White text reads best on this color (18.86:1).
About this color
#100D2A is a very dark, muted purple. In OKLCH its lightness is 18%, its chroma 0.057 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.048 away. White text reads best on it, at 18.86:1.
| Hue family | Purples |
| Lightness | very dark (18%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.11:1 |
| White text | 18.86:1 |
Values
| HEX | #100D2A |
| RGB | rgb(16, 13, 42) |
| HSL | hsl(246, 53%, 11%) |
| OKLCH | oklch(18.3% 0.057 283.9) |
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 #100D2A | 18.86:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #100D2A | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #100D2A text on white | 18.86:1 | AAA | Lc 105.2 | Preferred for body text |
| #100D2A 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D5D6F2
oklch(88.4% 0.038 284)
-
Step 300
300
#BBBBEB
oklch(80.8% 0.067 284.8)
-
Step 400
400
#9897E2
oklch(70.7% 0.109 283.9)
-
Step 500
500
#807CD9
oklch(63.1% 0.137 283.7)
-
Step 600
600
#6B63C6
oklch(55.6% 0.149 284.1)
-
Step 700
700
#5952AC
oklch(49.2% 0.139 283.5)
-
Step 800
800
#49438B
oklch(42.7% 0.116 284.1)
-
Step 900
900
#3D396F
oklch(37.7% 0.09 284.6)
-
Step 950
950 (this color)
#100D2A
oklch(18.3% 0.057 283.9)
#100D2A 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) | #01122B | 0.028 |
| Deuteranopia (no green cones) | #001029 | 0.030 |
| Tritanopia (no blue cones) | #071419 | 0.050 |
| Achromatopsia (no color) | #111111 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100D2A
#100D2A
oklch(18.3% 0.057 283.9)
- #151300
#151300
oklch(18.3% 0.039 104.9)
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 #100D2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.048
- Dark Navy #000435 ΔE 0.052
- Rich Navy #001219 ΔE 0.052
- Midnight #03012D ΔE 0.054
- Dark Navy Blue #00022E ΔE 0.057
- Very Dark Blue #000133 ΔE 0.060
- Navy Blue #001146 ΔE 0.060
- Midnight Purple #280137 ΔE 0.065
Use #100D2A 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.