#1B102E
Closest named color: Rich Black (#0D1B2A). oklch(20.6% 0.058 298), rgb(27, 16, 46).
Aa
White text reads best on this color (18.10:1).
About this color
#1B102E is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.058 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.044 away. White text reads best on it, at 18.10:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.10:1 |
Values
| HEX | #1B102E |
| RGB | rgb(27, 16, 46) |
| HSL | hsl(262, 48%, 12%) |
| OKLCH | oklch(20.6% 0.058 298) |
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 #1B102E | 18.10:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #1B102E | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #1B102E text on white | 18.10:1 | AAA | Lc 104.7 | Preferred for body text |
| #1B102E text on black | 1.16:1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F6
oklch(93.5% 0.021 298.2)
-
Step 200
200
#DCD4F0
oklch(88.5% 0.039 298.7)
-
Step 300
300
#C6B8E8
oklch(81% 0.068 298.2)
-
Step 400
400
#A991DC
oklch(70.6% 0.11 298.3)
-
Step 500
500
#9574D3
oklch(63.1% 0.142 298.3)
-
Step 600
600
#805BC0
oklch(55.7% 0.153 298.2)
-
Step 700
700
#6C4AA6
oklch(49.1% 0.143 298)
-
Step 800
800
#583D86
oklch(42.7% 0.118 298.3)
-
Step 900
900
#48356B
oklch(37.7% 0.091 298.1)
-
Step 950
950 (this color)
#1B102E
oklch(20.6% 0.058 298)
#1B102E 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) | #05162F | 0.040 |
| Deuteranopia (no green cones) | #07162D | 0.038 |
| Tritanopia (no blue cones) | #17161C | 0.046 |
| Achromatopsia (no color) | #161616 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B102E
#1B102E
oklch(20.6% 0.058 298)
- #161A00
#161A00
oklch(20.6% 0.048 117.2)
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 #1B102E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.044
- Midnight Purple #280137 ΔE 0.048
- Very Dark Purple #2A0134 ΔE 0.049
- Navy Blue #001146 ΔE 0.065
- Dark #1B2431 ΔE 0.066
- Dark Purple #35063E ΔE 0.068
- Eggplant #380835 ΔE 0.069
- Rich Navy #001219 ΔE 0.069
Use #1B102E 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.