#1B0D28
Closest named color: Very Dark Purple (#2A0134). oklch(19.5% 0.055 305.9), rgb(27, 13, 40).
Aa
White text reads best on this color (18.50:1).
About this color
#1B0D28 is a very dark, muted purple. In OKLCH its lightness is 19%, its chroma 0.055 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Very Dark Purple (#2A0134), ΔE 0.049 away. White text reads best on it, at 18.50:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Very Dark Purple (#2A0134) |
| Black text | 1.13:1 |
| White text | 18.50:1 |
Values
| HEX | #1B0D28 |
| RGB | rgb(27, 13, 40) |
| HSL | hsl(271, 51%, 10%) |
| OKLCH | oklch(19.5% 0.055 305.9) |
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 #1B0D28 | 18.50:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #1B0D28 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #1B0D28 text on white | 18.50:1 | AAA | Lc 105.0 | Preferred for body text |
| #1B0D28 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F4
oklch(93.6% 0.018 306.7)
-
Step 200
200
#DFD4EC
oklch(88.6% 0.035 306.3)
-
Step 300
300
#CBB6E2
oklch(80.8% 0.065 306.6)
-
Step 400
400
#B090D4
oklch(70.7% 0.103 305.5)
-
Step 500
500
#9D73C8
oklch(63.1% 0.131 305.8)
-
Step 600
600
#8859B5
oklch(55.5% 0.144 305.8)
-
Step 700
700
#74499C
oklch(49.2% 0.134 306)
-
Step 800
800
#5E3C7E
oklch(42.6% 0.111 306)
-
Step 900
900
#4D3465
oklch(37.7% 0.086 306.3)
-
Step 950
950 (this color)
#1B0D28
oklch(19.5% 0.055 305.9)
#1B0D28 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) | #051329 | 0.043 |
| Deuteranopia (no green cones) | #091427 | 0.039 |
| Tritanopia (no blue cones) | #191218 | 0.041 |
| Achromatopsia (no color) | #131313 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B0D28
#1B0D28
oklch(19.5% 0.055 305.9)
- #0F1900
#0F1900
oklch(19.6% 0.051 126.9)
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 #1B0D28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Purple #2A0134 ΔE 0.049
- Midnight Purple #280137 ΔE 0.050
- Rich Black #0D1B2A ΔE 0.050
- Rich Navy #001219 ΔE 0.065
- Eggplant #380835 ΔE 0.072
- Almost Black #070D0D ΔE 0.073
- Dark Purple #35063E ΔE 0.074
- Navy Blue #001146 ΔE 0.074
Use #1B0D28 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.