#1B0321
Closest named color: Very Dark Purple (#2A0134). oklch(16.9% 0.068 319.4), rgb(27, 3, 33).
Aa
White text reads best on this color (19.41:1).
About this color
#1B0321 is a very dark, muted purple. In OKLCH its lightness is 17%, its chroma 0.068 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Very Dark Purple (#2A0134), ΔE 0.052 away. White text reads best on it, at 19.41:1.
| Hue family | Purples |
| Lightness | very dark (17%) |
| Chroma | muted (0.068) |
| Temperature | in between |
| Nearest name | Very Dark Purple (#2A0134) |
| Black text | 1.08:1 |
| White text | 19.41:1 |
Values
| HEX | #1B0321 |
| RGB | rgb(27, 3, 33) |
| HSL | hsl(288, 83%, 7%) |
| OKLCH | oklch(16.9% 0.068 319.4) |
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 #1B0321 | 19.41:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #1B0321 | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #1B0321 text on white | 19.41:1 | AAA | Lc 105.4 | Preferred for body text |
| #1B0321 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
#F9F3FA
oklch(97.1% 0.011 321.3)
-
Step 100
100
#F1E5F4
oklch(93.6% 0.024 319.5)
-
Step 200
200
#E7D0EC
oklch(88.5% 0.045 320.2)
-
Step 300
300
#D8B0E2
oklch(80.9% 0.081 319.5)
-
Step 400
400
#C385D3
oklch(70.6% 0.129 319.2)
-
Step 500
500
#B364C7
oklch(63.1% 0.164 319.3)
-
Step 600
600
#9F48B3
oklch(55.7% 0.178 319.8)
-
Step 700
700
#87389A
oklch(49% 0.166 319.4)
-
Step 800
800
#6E307D
oklch(42.7% 0.137 319.4)
-
Step 900
900
#592B65
oklch(37.6% 0.108 319)
-
Step 950
950 (this color)
#1B0321
oklch(16.9% 0.068 319.4)
#1B0321 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) | #000B22 | 0.066 |
| Deuteranopia (no green cones) | #040E20 | 0.060 |
| Tritanopia (no blue cones) | #1B0710 | 0.042 |
| Achromatopsia (no color) | #0D0D0D | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B0321
#1B0321
oklch(16.9% 0.068 319.4)
- #021400
#021400
oklch(16.8% 0.054 139.9)
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 #1B0321, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Purple #2A0134 ΔE 0.052
- Midnight Purple #280137 ΔE 0.053
- Midnight #03012D ΔE 0.072
- Almost Black #070D0D ΔE 0.076
- Very Dark Brown #1D0200 ΔE 0.077
- Rich Navy #001219 ΔE 0.078
- Dark Navy Blue #00022E ΔE 0.080
- Dark Navy #000435 ΔE 0.080
Use #1B0321 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.