#1C1247
Closest named color: Dark Indigo (#1F0954). oklch(23.4% 0.094 285.2), rgb(28, 18, 71).
Aa
White text reads best on this color (17.11:1).
About this color
#1C1247 is a very dark, moderately saturated purple. In OKLCH its lightness is 23%, 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 0.028 away. White text reads best on it, at 17.11:1.
| Hue family | Purples |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.22:1 |
| White text | 17.11:1 |
Values
| HEX | #1C1247 |
| RGB | rgb(28, 18, 71) |
| HSL | hsl(251, 60%, 17%) |
| OKLCH | oklch(23.4% 0.094 285.2) |
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 #1C1247 | 17.11:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #1C1247 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #1C1247 text on white | 17.11:1 | AAA | Lc 103.7 | Preferred for body text |
| #1C1247 text on black | 1.22:1 | 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
#826DFF
oklch(63% 0.208 285.3)
-
Step 600
600
#6F48F9
oklch(55.6% 0.246 285.2)
-
Step 700
700
#5E37DA
oklch(49.2% 0.23 285.2)
-
Step 800
800
#4C30B0
oklch(42.8% 0.19 285.1)
-
Step 900
900
#3E2D8B
oklch(37.7% 0.148 285.1)
-
Step 950
950 (this color)
#1C1247
oklch(23.4% 0.094 285.2)
#1C1247 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) | #001D49 | 0.044 |
| Deuteranopia (no green cones) | #001A46 | 0.042 |
| Tritanopia (no blue cones) | #091F2A | 0.078 |
| Achromatopsia (no color) | #1C1C1C | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C1247
#1C1247
oklch(23.4% 0.094 285.2)
- #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 #1C1247, 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 0.046
- Midnight Purple #280137 ΔE 0.055
- Night Blue #040348 ΔE 0.060
- Very Dark Purple #2A0134 ΔE 0.061
- Dark Purple #35063E ΔE 0.062
- Oxford Blue #1B263B ΔE 0.067
- Deep Purple #36013F ΔE 0.067
Use #1C1247 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.