#1D1647
Closest named color: Dark Indigo (#1F0954). oklch(24.3% 0.088 284.3), rgb(29, 22, 71).
Aa
White text reads best on this color (16.69:1).
About this color
#1D1647 is a very dark, moderately saturated purple. In OKLCH its lightness is 24%, its chroma 0.088 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.034 away. White text reads best on it, at 16.69:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.25:1 |
| White text | 16.69:1 |
Values
| HEX | #1D1647 |
| RGB | rgb(29, 22, 71) |
| HSL | hsl(249, 53%, 18%) |
| OKLCH | oklch(24.3% 0.088 284.3) |
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 #1D1647 | 16.69:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #1D1647 | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #1D1647 text on white | 16.69:1 | AAA | Lc 103.4 | Preferred for body text |
| #1D1647 text on black | 1.25:1 | 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
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E8FE
oklch(93.7% 0.03 283.7)
-
Step 200
200
#D4D5FF
oklch(88.6% 0.058 284.1)
-
Step 300
300
#B9B8FF
oklch(80.9% 0.1 284.6)
-
Step 400
400
#9790FF
oklch(70.8% 0.159 284.4)
-
Step 500
500
#806EFF
oklch(63% 0.207 284.4)
-
Step 600
600
#6C4FF2
oklch(55.7% 0.231 284.1)
-
Step 700
700
#5B3ED2
oklch(49.1% 0.214 284.3)
-
Step 800
800
#4A34AA
oklch(42.6% 0.178 284.4)
-
Step 900
900
#3D3087
oklch(37.8% 0.139 284.4)
-
Step 950
950 (this color)
#1D1647
oklch(24.3% 0.088 284.3)
#1D1647 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) | #001F49 | 0.042 |
| Deuteranopia (no green cones) | #001C46 | 0.040 |
| Tritanopia (no blue cones) | #0C222C | 0.073 |
| Achromatopsia (no color) | #1E1E1E | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D1647
#1D1647
oklch(24.3% 0.088 284.3)
- #242100
#242100
oklch(24.3% 0.052 104.6)
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 #1D1647, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.034
- Navy Blue #001146 ΔE 0.050
- Oxford Blue #1B263B ΔE 0.057
- Midnight Purple #280137 ΔE 0.060
- Dark Purple #35063E ΔE 0.062
- Very Dark Purple #2A0134 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.066
- Dark #1B2431 ΔE 0.066
Use #1D1647 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.