#1C163F
Closest named color: Dark Indigo (#1F0954). oklch(23.4% 0.075 285.7), rgb(28, 22, 63).
Aa
White text reads best on this color (16.99:1).
About this color
#1C163F is a very dark, moderately saturated purple. In OKLCH its lightness is 23%, its chroma 0.075 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.047 away. White text reads best on it, at 16.99:1.
| Hue family | Purples |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.23:1 |
| White text | 16.99:1 |
Values
| HEX | #1C163F |
| RGB | rgb(28, 22, 63) |
| HSL | hsl(249, 48%, 17%) |
| OKLCH | oklch(23.4% 0.075 285.7) |
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 #1C163F | 16.99:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #1C163F | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #1C163F text on white | 16.99:1 | AAA | Lc 103.7 | Preferred for body text |
| #1C163F 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
#F4F4FD
oklch(97% 0.012 286.2)
-
Step 100
100
#E8E8FB
oklch(93.7% 0.026 285.9)
-
Step 200
200
#D5D5F9
oklch(88.4% 0.049 285.3)
-
Step 300
300
#BBB9F8
oklch(81% 0.088 285.7)
-
Step 400
400
#9992F5
oklch(70.7% 0.142 285.4)
-
Step 500
500
#8373F1
oklch(63.2% 0.182 285.7)
-
Step 600
600
#6E57DF
oklch(55.5% 0.198 285.7)
-
Step 700
700
#5D46C2
oklch(49.1% 0.185 285.9)
-
Step 800
800
#4B3B9D
oklch(42.7% 0.152 285.4)
-
Step 900
900
#3E347D
oklch(37.8% 0.119 285.4)
-
Step 950
950 (this color)
#1C163F
oklch(23.4% 0.075 285.7)
#1C163F 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) | #001D40 | 0.041 |
| Deuteranopia (no green cones) | #001B3E | 0.040 |
| Tritanopia (no blue cones) | #101F27 | 0.063 |
| Achromatopsia (no color) | #1C1C1C | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C163F
#1C163F
oklch(23.4% 0.075 285.7)
- #211F00
#211F00
oklch(23.4% 0.05 106.2)
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 #1C163F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.047
- Navy Blue #001146 ΔE 0.050
- Rich Black #0D1B2A ΔE 0.053
- Oxford Blue #1B263B ΔE 0.053
- Midnight Purple #280137 ΔE 0.056
- Dark #1B2431 ΔE 0.057
- Very Dark Purple #2A0134 ΔE 0.059
- Dark Purple #35063E ΔE 0.062
Use #1C163F 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.