#1B142D
Closest named color: Rich Black (#0D1B2A). oklch(21.4% 0.048 294.9), rgb(27, 20, 45).
Aa
White text reads best on this color (17.72:1).
About this color
#1B142D is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.048 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.034 away. White text reads best on it, at 17.72:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.048) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.72:1 |
Values
| HEX | #1B142D |
| RGB | rgb(27, 20, 45) |
| HSL | hsl(257, 38%, 13%) |
| OKLCH | oklch(21.4% 0.048 294.9) |
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 #1B142D | 17.72:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #1B142D | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #1B142D text on white | 17.72:1 | AAA | Lc 104.5 | Preferred for body text |
| #1B142D text on black | 1.18:1 | 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
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#DAD5ED
oklch(88.4% 0.033 295.3)
-
Step 300
300
#C3BAE3
oklch(81% 0.058 295.1)
-
Step 400
400
#A495D4
oklch(70.6% 0.092 294.9)
-
Step 500
500
#8F7AC9
oklch(63.1% 0.118 295)
-
Step 600
600
#7962B5
oklch(55.6% 0.127 294.7)
-
Step 700
700
#66519C
oklch(49.1% 0.118 294.6)
-
Step 800
800
#53427F
oklch(42.6% 0.099 294.7)
-
Step 900
900
#453866
oklch(37.7% 0.078 295.4)
-
Step 950
950 (this color)
#1B142D
oklch(21.4% 0.048 294.9)
#1B142D 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) | #0C182E | 0.028 |
| Deuteranopia (no green cones) | #0D182C | 0.027 |
| Tritanopia (no blue cones) | #17191E | 0.040 |
| Achromatopsia (no color) | #181818 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B142D
#1B142D
oklch(21.4% 0.048 294.9)
- #191C00
#191C00
oklch(21.6% 0.049 115.2)
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 #1B142D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.034
- Dark #1B2431 ΔE 0.054
- Midnight Purple #280137 ΔE 0.058
- Very Dark Purple #2A0134 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.061
- Jet #212529 ΔE 0.064
- Navy Blue #001146 ΔE 0.067
- Rich Navy #001219 ΔE 0.067
Use #1B142D 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.