#191645
Closest named color: Dark Indigo (#1F0954). oklch(23.7% 0.085 280.5), rgb(25, 22, 69).
Aa
White text reads best on this color (16.90:1).
About this color
#191645 is a very dark, moderately saturated purple. In OKLCH its lightness is 24%, its chroma 0.085 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.038 away. White text reads best on it, at 16.90:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.24:1 |
| White text | 16.90:1 |
Values
| HEX | #191645 |
| RGB | rgb(25, 22, 69) |
| HSL | hsl(244, 52%, 18%) |
| OKLCH | oklch(23.7% 0.085 280.5) |
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 #191645 | 16.90:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #191645 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #191645 text on white | 16.90:1 | AAA | Lc 103.6 | Preferred for body text |
| #191645 text on black | 1.24:1 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E6E8FE
oklch(93.6% 0.03 281.7)
-
Step 200
200
#D1D6FE
oklch(88.5% 0.055 279.6)
-
Step 300
300
#B4BAFF
oklch(80.9% 0.098 280.1)
-
Step 400
400
#9093FF
oklch(70.8% 0.156 280.4)
-
Step 500
500
#7772FF
oklch(63% 0.203 280.4)
-
Step 600
600
#6354F0
oklch(55.5% 0.224 280.5)
-
Step 700
700
#5343D1
oklch(49.1% 0.208 280.6)
-
Step 800
800
#4338A9
oklch(42.6% 0.173 280.5)
-
Step 900
900
#383386
oklch(37.8% 0.134 280.5)
-
Step 950
950 (this color)
#191645
oklch(23.7% 0.085 280.5)
#191645 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) | #001E47 | 0.036 |
| Deuteranopia (no green cones) | #001B44 | 0.034 |
| Tritanopia (no blue cones) | #03212B | 0.072 |
| Achromatopsia (no color) | #1D1D1D | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #191645
#191645
oklch(23.7% 0.085 280.5)
- #241F00
#241F00
oklch(23.8% 0.05 100.7)
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 #191645, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.038
- Navy Blue #001146 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.057
- Rich Black #0D1B2A ΔE 0.060
- Night Blue #040348 ΔE 0.062
- Midnight Purple #280137 ΔE 0.062
- Dark #1B2431 ΔE 0.064
- Very Dark Purple #2A0134 ΔE 0.067
Use #191645 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.