#1B0C29
Closest named color: Midnight Purple (#280137). oklch(19.4% 0.058 305.5), rgb(27, 12, 41).
Aa
White text reads best on this color (18.56:1).
About this color
#1B0C29 is a very dark, muted purple. In OKLCH its lightness is 19%, its chroma 0.058 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.047 away. White text reads best on it, at 18.56:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.13:1 |
| White text | 18.56:1 |
Values
| HEX | #1B0C29 |
| RGB | rgb(27, 12, 41) |
| HSL | hsl(271, 55%, 10%) |
| OKLCH | oklch(19.4% 0.058 305.5) |
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 #1B0C29 | 18.56:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #1B0C29 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #1B0C29 text on white | 18.56:1 | AAA | Lc 105.0 | Preferred for body text |
| #1B0C29 text on black | 1.13:1 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F5
oklch(93.7% 0.02 305.3)
-
Step 200
200
#DFD3EE
oklch(88.5% 0.039 305.6)
-
Step 300
300
#CBB6E5
oklch(80.9% 0.069 305.2)
-
Step 400
400
#B18ED7
oklch(70.6% 0.11 305.7)
-
Step 500
500
#9E71CD
oklch(63.2% 0.141 305.3)
-
Step 600
600
#8957B9
oklch(55.5% 0.153 305.6)
-
Step 700
700
#7447A0
oklch(49.1% 0.142 305.1)
-
Step 800
800
#5F3B82
oklch(42.8% 0.118 305.4)
-
Step 900
900
#4D3368
oklch(37.7% 0.092 305.1)
-
Step 950
950 (this color)
#1B0C29
oklch(19.4% 0.058 305.5)
#1B0C29 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) | #03132A | 0.047 |
| Deuteranopia (no green cones) | #071328 | 0.042 |
| Tritanopia (no blue cones) | #191218 | 0.044 |
| Achromatopsia (no color) | #131313 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B0C29
#1B0C29
oklch(19.4% 0.058 305.5)
- #0F1800
#0F1800
oklch(19.3% 0.049 125.8)
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 #1B0C29, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.047
- Very Dark Purple #2A0134 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.053
- Rich Navy #001219 ΔE 0.067
- Eggplant #380835 ΔE 0.072
- Dark Purple #35063E ΔE 0.072
- Dark Navy #000435 ΔE 0.073
- Midnight #03012D ΔE 0.073
Use #1B0C29 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.