#1B051C
Closest named color: Very Dark Purple (#2A0134). oklch(16.9% 0.056 326), rgb(27, 5, 28).
Aa
White text reads best on this color (19.35:1).
About this color
#1B051C is a very dark, muted purple. In OKLCH its lightness is 17%, its chroma 0.056 and its hue 326°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Very Dark Purple (#2A0134), ΔE 0.060 away. White text reads best on it, at 19.35:1.
| Hue family | Purples |
| Lightness | very dark (17%) |
| Chroma | muted (0.056) |
| Temperature | in between |
| Nearest name | Very Dark Purple (#2A0134) |
| Black text | 1.08:1 |
| White text | 19.35:1 |
Values
| HEX | #1B051C |
| RGB | rgb(27, 5, 28) |
| HSL | hsl(297, 70%, 6%) |
| OKLCH | oklch(16.9% 0.056 326) |
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 #1B051C | 19.35:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #1B051C | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #1B051C text on white | 19.35:1 | AAA | Lc 105.4 | Preferred for body text |
| #1B051C text on black | 1.08:1 | 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
#F9F3F9
oklch(97% 0.01 325.7)
-
Step 100
100
#F1E6F1
oklch(93.7% 0.019 325.7)
-
Step 200
200
#E7D1E7
oklch(88.5% 0.038 325.9)
-
Step 300
300
#D8B2D8
oklch(80.9% 0.067 326.2)
-
Step 400
400
#C389C4
oklch(70.7% 0.106 326.1)
-
Step 500
500
#B36AB5
oklch(63.1% 0.136 326.1)
-
Step 600
600
#9E50A1
oklch(55.6% 0.147 325.9)
-
Step 700
700
#87408A
oklch(49.1% 0.138 325.9)
-
Step 800
800
#6E3570
oklch(42.7% 0.115 326.1)
-
Step 900
900
#592F5B
oklch(37.7% 0.089 325.5)
-
Step 950
950 (this color)
#1B051C
oklch(16.9% 0.056 326)
#1B051C 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) | #030C1D | 0.057 |
| Deuteranopia (no green cones) | #090F1B | 0.050 |
| Tritanopia (no blue cones) | #1C070F | 0.031 |
| Achromatopsia (no color) | #0E0E0E | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B051C
#1B051C
oklch(16.9% 0.056 326)
- #001502
#001502
oklch(17% 0.053 145.6)
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 #1B051C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Purple #2A0134 ΔE 0.060
- Midnight Purple #280137 ΔE 0.062
- Very Dark Brown #1D0200 ΔE 0.065
- Almost Black #070D0D ΔE 0.065
- Rich Navy #001219 ΔE 0.071
- Rich Black #0D1B2A ΔE 0.076
- Midnight #03012D ΔE 0.077
- Dark Navy Blue #00022E ΔE 0.085
Use #1B051C 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.