#1B0B35
Closest named color: Midnight Purple (#280137). oklch(20.3% 0.078 296.2), rgb(27, 11, 53).
Aa
White text reads best on this color (18.32:1).
About this color
#1B0B35 is a very dark, moderately saturated purple. In OKLCH its lightness is 20%, its chroma 0.078 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.037 away. White text reads best on it, at 18.32:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.14:1 |
| White text | 18.32:1 |
Values
| HEX | #1B0B35 |
| RGB | rgb(27, 11, 53) |
| HSL | hsl(263, 66%, 13%) |
| OKLCH | oklch(20.3% 0.078 296.2) |
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 #1B0B35 | 18.32:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #1B0B35 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #1B0B35 text on white | 18.32:1 | AAA | Lc 104.7 | Preferred for body text |
| #1B0B35 text on black | 1.14:1 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7FA
oklch(93.7% 0.026 295.5)
-
Step 200
200
#DCD3F8
oklch(88.6% 0.051 296.5)
-
Step 300
300
#C6B5F6
oklch(81% 0.092 296.3)
-
Step 400
400
#AA8BF1
oklch(70.7% 0.148 296.4)
-
Step 500
500
#966AEC
oklch(63% 0.189 296.2)
-
Step 600
600
#824DDA
oklch(55.5% 0.205 296.4)
-
Step 700
700
#6E3DBD
oklch(49% 0.19 296.2)
-
Step 800
800
#5A3499
oklch(42.8% 0.157 296.5)
-
Step 900
900
#492F7A
oklch(37.7% 0.122 296)
-
Step 950
950 (this color)
#1B0B35
oklch(20.3% 0.078 296.2)
#1B0B35 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) | #001536 | 0.051 |
| Deuteranopia (no green cones) | #001434 | 0.051 |
| Tritanopia (no blue cones) | #14151E | 0.061 |
| Achromatopsia (no color) | #151515 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B0B35
#1B0B35
oklch(20.3% 0.078 296.2)
- #161900
#161900
oklch(20.3% 0.046 115.6)
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 #1B0B35, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.037
- Very Dark Purple #2A0134 ΔE 0.041
- Navy Blue #001146 ΔE 0.058
- Dark Indigo #1F0954 ΔE 0.059
- Rich Black #0D1B2A ΔE 0.060
- Dark Purple #35063E ΔE 0.063
- Night Blue #040348 ΔE 0.064
- Dark Navy #000435 ΔE 0.067
Use #1B0B35 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.