#1F164D
Closest named color: Dark Indigo (#1F0954). oklch(25% 0.097 284.5), rgb(31, 22, 77).
Aa
White text reads best on this color (16.40:1).
About this color
#1F164D is a dark, moderately saturated purple. In OKLCH its lightness is 25%, its chroma 0.097 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.028 away. White text reads best on it, at 16.40:1.
| Hue family | Purples |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.28:1 |
| White text | 16.40:1 |
Values
| HEX | #1F164D |
| RGB | rgb(31, 22, 77) |
| HSL | hsl(250, 56%, 19%) |
| OKLCH | oklch(25% 0.097 284.5) |
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 #1F164D | 16.40:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #1F164D | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #1F164D text on white | 16.40:1 | AAA | Lc 103.1 | Preferred for body text |
| #1F164D text on black | 1.28:1 | 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
#E7E7FF
oklch(93.5% 0.032 285.8)
-
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
#6E46FE
oklch(55.7% 0.254 284.5)
-
Step 700
700
#5C34DD
oklch(49% 0.236 284.4)
-
Step 800
800
#4B2EB3
oklch(42.7% 0.196 284.5)
-
Step 900
900
#3D2C8D
oklch(37.6% 0.152 284.4)
-
Step 950
950 (this color)
#1F164D
oklch(25% 0.097 284.5)
#1F164D 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) | #00214F | 0.045 |
| Deuteranopia (no green cones) | #001E4C | 0.043 |
| Tritanopia (no blue cones) | #0B242F | 0.081 |
| Achromatopsia (no color) | #1F1F1F | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F164D
#1F164D
oklch(25% 0.097 284.5)
- #262300
#262300
oklch(25.1% 0.053 104.8)
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 #1F164D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.028
- Navy Blue #001146 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.062
- Dark Purple #35063E ΔE 0.063
- Midnight Blue #191970 ΔE 0.065
- Midnight Purple #280137 ΔE 0.065
- Darkblue #030764 ΔE 0.068
- Deep Purple #36013F ΔE 0.068
Use #1F164D 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.