#100D2E
Closest named color: Dark Navy (#000435). oklch(18.7% 0.064 282.4), rgb(16, 13, 46).
Aa
White text reads best on this color (18.76:1).
About this color
#100D2E is a very dark, muted purple. In OKLCH its lightness is 19%, its chroma 0.064 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy (#000435), ΔE 0.048 away. White text reads best on it, at 18.76:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dark Navy (#000435) |
| Black text | 1.11:1 |
| White text | 18.76:1 |
Values
| HEX | #100D2E |
| RGB | rgb(16, 13, 46) |
| HSL | hsl(245, 56%, 12%) |
| OKLCH | oklch(18.7% 0.064 282.4) |
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 #100D2E | 18.76:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #100D2E | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #100D2E text on white | 18.76:1 | AAA | Lc 105.1 | Preferred for body text |
| #100D2E 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
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D4D6F5
oklch(88.4% 0.043 282.6)
-
Step 300
300
#B9BBF1
oklch(80.9% 0.076 282.9)
-
Step 400
400
#9596EA
oklch(70.6% 0.122 282.3)
-
Step 500
500
#7D7AE3
oklch(63.1% 0.154 282.3)
-
Step 600
600
#6860D1
oklch(55.5% 0.169 282.6)
-
Step 700
700
#574FB5
oklch(49.1% 0.156 282.5)
-
Step 800
800
#474192
oklch(42.6% 0.129 282.8)
-
Step 900
900
#3B3875
oklch(37.7% 0.101 282.6)
-
Step 950
950 (this color)
#100D2E
oklch(18.7% 0.064 282.4)
#100D2E 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) | #00132F | 0.030 |
| Deuteranopia (no green cones) | #00112D | 0.029 |
| Tritanopia (no blue cones) | #04151B | 0.056 |
| Achromatopsia (no color) | #121212 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100D2E
#100D2E
oklch(18.7% 0.064 282.4)
- #171300
#171300
oklch(18.6% 0.039 99.8)
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 #100D2E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy #000435 ΔE 0.048
- Rich Black #0D1B2A ΔE 0.049
- Midnight #03012D ΔE 0.053
- Navy Blue #001146 ΔE 0.053
- Dark Navy Blue #00022E ΔE 0.056
- Very Dark Blue #000133 ΔE 0.058
- Rich Navy #001219 ΔE 0.058
- Night Blue #040348 ΔE 0.060
Use #100D2E 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.