#1B112A
Closest named color: Rich Black (#0D1B2A). oklch(20.5% 0.049 300.6), rgb(27, 17, 42).
Aa
White text reads best on this color (18.10:1).
About this color
#1B112A is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.049 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.040 away. White text reads best on it, at 18.10:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.10:1 |
Values
| HEX | #1B112A |
| RGB | rgb(27, 17, 42) |
| HSL | hsl(264, 42%, 12%) |
| OKLCH | oklch(20.5% 0.049 300.6) |
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 #1B112A | 18.10:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #1B112A | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #1B112A text on white | 18.10:1 | AAA | Lc 104.7 | Preferred for body text |
| #1B112A 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE7F4
oklch(93.5% 0.018 300.1)
-
Step 200
200
#DCD5EC
oklch(88.6% 0.032 299.6)
-
Step 300
300
#C6B9E1
oklch(81% 0.057 300)
-
Step 400
400
#AA93D2
oklch(70.7% 0.093 300.8)
-
Step 500
500
#9577C7
oklch(63% 0.121 300.2)
-
Step 600
600
#805FB3
oklch(55.6% 0.13 300.4)
-
Step 700
700
#6C4E9A
oklch(49.1% 0.121 300.2)
-
Step 800
800
#58407D
oklch(42.6% 0.101 300.3)
-
Step 900
900
#493764
oklch(37.8% 0.077 301.2)
-
Step 950
950 (this color)
#1B112A
oklch(20.5% 0.049 300.6)
#1B112A 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) | #09162B | 0.034 |
| Deuteranopia (no green cones) | #0C1629 | 0.031 |
| Tritanopia (no blue cones) | #18161B | 0.039 |
| Achromatopsia (no color) | #161616 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B112A
#1B112A
oklch(20.5% 0.049 300.6)
- #141A00
#141A00
oklch(20.4% 0.049 120.6)
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 #1B112A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.040
- Midnight Purple #280137 ΔE 0.054
- Very Dark Purple #2A0134 ΔE 0.054
- Dark #1B2431 ΔE 0.063
- Rich Navy #001219 ΔE 0.064
- Navy Blue #001146 ΔE 0.070
- Eggplant #380835 ΔE 0.071
- Oxford Blue #1B263B ΔE 0.071
Use #1B112A 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.