#1C0E40
Closest named color: Dark Indigo (#1F0954). oklch(22% 0.089 289.9), rgb(28, 14, 64).
Aa
White text reads best on this color (17.70:1).
About this color
#1C0E40 is a very dark, moderately saturated purple. In OKLCH its lightness is 22%, its chroma 0.089 and its hue 290°. 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 17.70:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.18:1 |
| White text | 17.70:1 |
Values
| HEX | #1C0E40 |
| RGB | rgb(28, 14, 64) |
| HSL | hsl(257, 64%, 15%) |
| OKLCH | oklch(22% 0.089 289.9) |
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 #1C0E40 | 17.70:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #1C0E40 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #1C0E40 text on white | 17.70:1 | AAA | Lc 104.2 | Preferred for body text |
| #1C0E40 text on black | 1.18:1 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E7FE
oklch(93.6% 0.031 289.8)
-
Step 200
200
#D8D3FE
oklch(88.5% 0.059 290.5)
-
Step 300
300
#BFB5FF
oklch(80.8% 0.104 290.1)
-
Step 400
400
#A08BFF
oklch(70.6% 0.166 289.8)
-
Step 500
500
#8C68FF
oklch(63.1% 0.214 289.8)
-
Step 600
600
#7948EF
oklch(55.6% 0.234 290.1)
-
Step 700
700
#6637D0
oklch(49.1% 0.218 289.9)
-
Step 800
800
#5330A8
oklch(42.7% 0.18 290)
-
Step 900
900
#442D85
oklch(37.8% 0.14 290.1)
-
Step 950
950 (this color)
#1C0E40
oklch(22% 0.089 289.9)
#1C0E40 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) | #001942 | 0.048 |
| Deuteranopia (no green cones) | #00173F | 0.047 |
| Tritanopia (no blue cones) | #101B25 | 0.073 |
| Achromatopsia (no color) | #181818 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C0E40
#1C0E40
oklch(22% 0.089 289.9)
- #1C1C00
#1C1C00
oklch(21.9% 0.048 109.8)
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 #1C0E40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.038
- Midnight Purple #280137 ΔE 0.043
- Navy Blue #001146 ΔE 0.048
- Very Dark Purple #2A0134 ΔE 0.049
- Night Blue #040348 ΔE 0.058
- Dark Purple #35063E ΔE 0.059
- Deep Purple #36013F ΔE 0.063
- Rich Black #0D1B2A ΔE 0.065
Use #1C0E40 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.