#1F1245
Closest named color: Dark Indigo (#1F0954). oklch(23.5% 0.091 289.2), rgb(31, 18, 69).
Aa
White text reads best on this color (17.06:1).
About this color
#1F1245 is a very dark, moderately saturated purple. In OKLCH its lightness is 24%, its chroma 0.091 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.032 away. White text reads best on it, at 17.06:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.23:1 |
| White text | 17.06:1 |
Values
| HEX | #1F1245 |
| RGB | rgb(31, 18, 69) |
| HSL | hsl(255, 59%, 17%) |
| OKLCH | oklch(23.5% 0.091 289.2) |
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 #1F1245 | 17.06:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #1F1245 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #1F1245 text on white | 17.06:1 | AAA | Lc 103.7 | Preferred for body text |
| #1F1245 text on black | 1.23:1 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E7FE
oklch(93.6% 0.031 289.8)
-
Step 200
200
#D7D3FF
oklch(88.4% 0.06 289.3)
-
Step 300
300
#BEB6FF
oklch(80.9% 0.102 288.9)
-
Step 400
400
#9F8CFF
oklch(70.7% 0.164 289.1)
-
Step 500
500
#8B69FF
oklch(63.1% 0.213 289.3)
-
Step 600
600
#7847F2
oklch(55.7% 0.239 289.4)
-
Step 700
700
#6536D3
oklch(49.1% 0.223 289.1)
-
Step 800
800
#522FAA
oklch(42.7% 0.184 289.2)
-
Step 900
900
#432C87
oklch(37.7% 0.144 289.2)
-
Step 950
950 (this color)
#1F1245
oklch(23.5% 0.091 289.2)
#1F1245 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) | #001D47 | 0.049 |
| Deuteranopia (no green cones) | #001B44 | 0.048 |
| Tritanopia (no blue cones) | #121F29 | 0.075 |
| Achromatopsia (no color) | #1C1C1C | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F1245
#1F1245
oklch(23.5% 0.091 289.2)
- #202000
#202000
oklch(23.6% 0.051 109.8)
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 #1F1245, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.032
- Midnight Purple #280137 ΔE 0.050
- Navy Blue #001146 ΔE 0.052
- Very Dark Purple #2A0134 ΔE 0.055
- Dark Purple #35063E ΔE 0.055
- Deep Purple #36013F ΔE 0.061
- Oxford Blue #1B263B ΔE 0.065
- Night Blue #040348 ΔE 0.066
Use #1F1245 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.