#1C1338
Closest named color: Rich Black (#0D1B2A). oklch(22.2% 0.069 290.9), rgb(28, 19, 56).
Aa
White text reads best on this color (17.50:1).
About this color
#1C1338 is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.069 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.048 away. White text reads best on it, at 17.50:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.50:1 |
Values
| HEX | #1C1338 |
| RGB | rgb(28, 19, 56) |
| HSL | hsl(255, 49%, 15%) |
| OKLCH | oklch(22.2% 0.069 290.9) |
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 #1C1338 | 17.50:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #1C1338 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #1C1338 text on white | 17.50:1 | AAA | Lc 104.2 | Preferred for body text |
| #1C1338 text on black | 1.19:1 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E7F9
oklch(93.5% 0.024 291)
-
Step 200
200
#D8D5F6
oklch(88.6% 0.045 289.6)
-
Step 300
300
#C0B8F2
oklch(80.9% 0.081 290.8)
-
Step 400
400
#A191EC
oklch(70.7% 0.131 290.7)
-
Step 500
500
#8C73E5
oklch(63.2% 0.166 291)
-
Step 600
600
#7758D3
oklch(55.6% 0.181 290.9)
-
Step 700
700
#6447B7
oklch(49.1% 0.169 290.8)
-
Step 800
800
#523B94
oklch(42.7% 0.14 291.2)
-
Step 900
900
#433476
oklch(37.7% 0.109 290.7)
-
Step 950
950 (this color)
#1C1338
oklch(22.2% 0.069 290.9)
#1C1338 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) | #021A39 | 0.042 |
| Deuteranopia (no green cones) | #031937 | 0.041 |
| Tritanopia (no blue cones) | #141B23 | 0.056 |
| Achromatopsia (no color) | #191919 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C1338
#1C1338
oklch(22.2% 0.069 290.9)
- #1C1D00
#1C1D00
oklch(22.2% 0.049 111.6)
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 #1C1338, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.048
- Midnight Purple #280137 ΔE 0.048
- Very Dark Purple #2A0134 ΔE 0.051
- Navy Blue #001146 ΔE 0.054
- Dark Indigo #1F0954 ΔE 0.056
- Dark #1B2431 ΔE 0.060
- Oxford Blue #1B263B ΔE 0.060
- Dark Purple #35063E ΔE 0.061
Use #1C1338 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.