#1F163D
Closest named color: Dark Indigo (#1F0954). oklch(23.6% 0.072 290.4), rgb(31, 22, 61).
Aa
White text reads best on this color (16.92:1).
About this color
#1F163D is a very dark, moderately saturated purple. In OKLCH its lightness is 24%, its chroma 0.072 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.051 away. White text reads best on it, at 16.92:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.24:1 |
| White text | 16.92:1 |
Values
| HEX | #1F163D |
| RGB | rgb(31, 22, 61) |
| HSL | hsl(254, 47%, 16%) |
| OKLCH | oklch(23.6% 0.072 290.4) |
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 #1F163D | 16.92:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #1F163D | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #1F163D text on white | 16.92:1 | AAA | Lc 103.7 | Preferred for body text |
| #1F163D 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D8D4F7
oklch(88.4% 0.048 290.6)
-
Step 300
300
#C0B8F4
oklch(81% 0.084 290.5)
-
Step 400
400
#A190EF
oklch(70.7% 0.137 290.7)
-
Step 500
500
#8B72E9
oklch(63.2% 0.173 290.2)
-
Step 600
600
#7756D7
oklch(55.6% 0.189 290.7)
-
Step 700
700
#6446BB
oklch(49.2% 0.175 290.3)
-
Step 800
800
#513A97
oklch(42.7% 0.145 290.2)
-
Step 900
900
#433378
oklch(37.7% 0.113 290.6)
-
Step 950
950 (this color)
#1F163D
oklch(23.6% 0.072 290.4)
#1F163D 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) | #031D3E | 0.043 |
| Deuteranopia (no green cones) | #041C3C | 0.042 |
| Tritanopia (no blue cones) | #161E26 | 0.059 |
| Achromatopsia (no color) | #1D1D1D | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F163D
#1F163D
oklch(23.6% 0.072 290.4)
- #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 #1F163D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.052
- Midnight Purple #280137 ΔE 0.053
- Rich Black #0D1B2A ΔE 0.053
- Dark #1B2431 ΔE 0.055
- Very Dark Purple #2A0134 ΔE 0.055
- Dark Purple #35063E ΔE 0.057
- Navy Blue #001146 ΔE 0.057
Use #1F163D 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.