#1F164B
Closest named color: Dark Indigo (#1F0954). oklch(24.8% 0.094 285.1), rgb(31, 22, 75).
Aa
White text reads best on this color (16.47:1).
About this color
#1F164B is a very dark, moderately saturated purple. In OKLCH its lightness is 25%, its chroma 0.094 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.030 away. White text reads best on it, at 16.47:1.
| Hue family | Purples |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.27:1 |
| White text | 16.47:1 |
Values
| HEX | #1F164B |
| RGB | rgb(31, 22, 75) |
| HSL | hsl(250, 55%, 19%) |
| OKLCH | oklch(24.8% 0.094 285.1) |
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 #1F164B | 16.47:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #1F164B | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #1F164B text on white | 16.47:1 | AAA | Lc 103.2 | Preferred for body text |
| #1F164B text on black | 1.27:1 | 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
#D4D4FF
oklch(88.4% 0.059 285.1)
-
Step 300
300
#BAB8FF
oklch(81% 0.1 285.2)
-
Step 400
400
#988FFF
oklch(70.7% 0.16 285.2)
-
Step 500
500
#826EFF
oklch(63.2% 0.207 285.1)
-
Step 600
600
#6F48F9
oklch(55.6% 0.246 285.2)
-
Step 700
700
#5D37D9
oklch(49% 0.229 285)
-
Step 800
800
#4C30AF
oklch(42.7% 0.189 285.3)
-
Step 900
900
#3E2D8B
oklch(37.7% 0.148 285.1)
-
Step 950
950 (this color)
#1F164B
oklch(24.8% 0.094 285.1)
#1F164B 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) | #00214D | 0.046 |
| Deuteranopia (no green cones) | #001D4A | 0.043 |
| Tritanopia (no blue cones) | #0D232E | 0.078 |
| Achromatopsia (no color) | #1F1F1F | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F164B
#1F164B
oklch(24.8% 0.094 285.1)
- #252200
#252200
oklch(24.7% 0.052 104.7)
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 #1F164B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.030
- Navy Blue #001146 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.060
- Dark Purple #35063E ΔE 0.061
- Midnight Purple #280137 ΔE 0.063
- Deep Purple #36013F ΔE 0.067
- Very Dark Purple #2A0134 ΔE 0.068
- Midnight Blue #191970 ΔE 0.069
Use #1F164B 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.