#1B142C
Closest named color: Rich Black (#0D1B2A). oklch(21.3% 0.047 295.6), rgb(27, 20, 44).
Aa
White text reads best on this color (17.75:1).
About this color
#1B142C is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.047 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.033 away. White text reads best on it, at 17.75:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.75:1 |
Values
| HEX | #1B142C |
| RGB | rgb(27, 20, 44) |
| HSL | hsl(258, 38%, 13%) |
| OKLCH | oklch(21.3% 0.047 295.6) |
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 #1B142C | 17.75:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #1B142C | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #1B142C text on white | 17.75:1 | AAA | Lc 104.5 | Preferred for body text |
| #1B142C 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
#DAD5EC
oklch(88.4% 0.032 295.7)
-
Step 300
300
#C3BAE1
oklch(80.9% 0.055 295.7)
-
Step 400
400
#A596D2
oklch(70.8% 0.088 295.6)
-
Step 500
500
#8F7BC6
oklch(63.2% 0.112 295.3)
-
Step 600
600
#7A62B3
oklch(55.6% 0.124 295.8)
-
Step 700
700
#67519A
oklch(49.1% 0.115 295.8)
-
Step 800
800
#54437D
oklch(42.8% 0.095 295.6)
-
Step 900
900
#453964
oklch(37.7% 0.073 295.5)
-
Step 950
950 (this color)
#1B142C
oklch(21.3% 0.047 295.6)
#1B142C 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) | #0D182D | 0.026 |
| Deuteranopia (no green cones) | #0E182B | 0.026 |
| Tritanopia (no blue cones) | #17181D | 0.038 |
| Achromatopsia (no color) | #181818 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B142C
#1B142C
oklch(21.3% 0.047 295.6)
- #181B01
#181B01
oklch(21.2% 0.046 115.4)
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 #1B142C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.033
- Dark #1B2431 ΔE 0.054
- Midnight Purple #280137 ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.061
- Jet #212529 ΔE 0.064
- Rich Navy #001219 ΔE 0.065
- Navy Blue #001146 ΔE 0.068
Use #1B142C 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.