#1B041F
Closest named color: Very Dark Purple (#2A0134). oklch(16.9% 0.063 321.8), rgb(27, 4, 31).
Aa
White text reads best on this color (19.37:1).
About this color
#1B041F is a very dark, muted purple. In OKLCH its lightness is 17%, its chroma 0.063 and its hue 322°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Very Dark Purple (#2A0134), ΔE 0.055 away. White text reads best on it, at 19.37:1.
| Hue family | Purples |
| Lightness | very dark (17%) |
| Chroma | muted (0.063) |
| Temperature | in between |
| Nearest name | Very Dark Purple (#2A0134) |
| Black text | 1.08:1 |
| White text | 19.37:1 |
Values
| HEX | #1B041F |
| RGB | rgb(27, 4, 31) |
| HSL | hsl(291, 77%, 7%) |
| OKLCH | oklch(16.9% 0.063 321.8) |
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 #1B041F | 19.37:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #1B041F | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #1B041F text on white | 19.37:1 | AAA | Lc 105.4 | Preferred for body text |
| #1B041F 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
#F1E5F3
oklch(93.5% 0.023 321.4)
-
Step 200
200
#E6D1EA
oklch(88.5% 0.041 320.8)
-
Step 300
300
#D8B1DE
oklch(80.9% 0.075 321.8)
-
Step 400
400
#C387CD
oklch(70.7% 0.119 321.6)
-
Step 500
500
#B367C0
oklch(63.2% 0.152 321.6)
-
Step 600
600
#9E4CAC
oklch(55.7% 0.165 321.6)
-
Step 700
700
#873C93
oklch(49.1% 0.153 321.9)
-
Step 800
800
#6E3278
oklch(42.7% 0.128 321.7)
-
Step 900
900
#592D60
oklch(37.7% 0.098 322)
-
Step 950
950 (this color)
#1B041F
oklch(16.9% 0.063 321.8)
#1B041F 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) | #000C20 | 0.065 |
| Deuteranopia (no green cones) | #060E1E | 0.055 |
| Tritanopia (no blue cones) | #1B0810 | 0.038 |
| Achromatopsia (no color) | #0D0D0D | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B041F
#1B041F
oklch(16.9% 0.063 321.8)
- #011500
#011500
oklch(17.1% 0.056 141.3)
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 #1B041F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Purple #2A0134 ΔE 0.055
- Midnight Purple #280137 ΔE 0.056
- Almost Black #070D0D ΔE 0.071
- Very Dark Brown #1D0200 ΔE 0.072
- Midnight #03012D ΔE 0.074
- Rich Navy #001219 ΔE 0.074
- Rich Black #0D1B2A ΔE 0.078
- Dark Navy Blue #00022E ΔE 0.082
Use #1B041F 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.