#1B0A23
Closest named color: Very Dark Purple (#2A0134). oklch(18.5% 0.053 313.8), rgb(27, 10, 35).
Aa
White text reads best on this color (18.84:1).
About this color
#1B0A23 is a very dark, muted purple. In OKLCH its lightness is 19%, its chroma 0.053 and its hue 314°. 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 18.84:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Very Dark Purple (#2A0134) |
| Black text | 1.11:1 |
| White text | 18.84:1 |
Values
| HEX | #1B0A23 |
| RGB | rgb(27, 10, 35) |
| HSL | hsl(281, 56%, 9%) |
| OKLCH | oklch(18.5% 0.053 313.8) |
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 #1B0A23 | 18.84:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #1B0A23 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #1B0A23 text on white | 18.84:1 | AAA | Lc 105.2 | Preferred for body text |
| #1B0A23 text on black | 1.11:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EEE6F3
oklch(93.5% 0.019 312.8)
-
Step 200
200
#E2D3EA
oklch(88.6% 0.035 314.1)
-
Step 300
300
#D0B5DE
oklch(80.9% 0.064 314.1)
-
Step 400
400
#B78ECD
oklch(70.7% 0.1 313.5)
-
Step 500
500
#A570C0
oklch(63.1% 0.129 313.6)
-
Step 600
600
#9057AC
oklch(55.6% 0.14 313.6)
-
Step 700
700
#7B4694
oklch(49.1% 0.132 313.9)
-
Step 800
800
#643A78
oklch(42.6% 0.109 313.9)
-
Step 900
900
#513361
oklch(37.7% 0.084 313)
-
Step 950
950 (this color)
#1B0A23
oklch(18.5% 0.053 313.8)
#1B0A23 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) | #051024 | 0.046 |
| Deuteranopia (no green cones) | #091222 | 0.043 |
| Tritanopia (no blue cones) | #1A0E15 | 0.035 |
| Achromatopsia (no color) | #111111 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B0A23
#1B0A23
oklch(18.5% 0.053 313.8)
- #081700
#081700
oklch(18.4% 0.052 133.7)
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 #1B0A23, 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
- Rich Black #0D1B2A ΔE 0.058
- Rich Navy #001219 ΔE 0.064
- Almost Black #070D0D ΔE 0.067
- Midnight #03012D ΔE 0.075
- Eggplant #380835 ΔE 0.077
- Very Dark Brown #1D0200 ΔE 0.077
Use #1B0A23 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.