#1D1938
Closest named color: Rich Black (#0D1B2A). oklch(23.6% 0.058 287), rgb(29, 25, 56).
Aa
White text reads best on this color (16.82:1).
About this color
#1D1938 is a very dark, muted purple. In OKLCH its lightness is 24%, its chroma 0.058 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.040 away. White text reads best on it, at 16.82:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.24:1 |
| White text | 16.82:1 |
Values
| HEX | #1D1938 |
| RGB | rgb(29, 25, 56) |
| HSL | hsl(248, 38%, 16%) |
| OKLCH | oklch(23.6% 0.058 287) |
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 #1D1938 | 16.82:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #1D1938 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #1D1938 text on white | 16.82:1 | AAA | Lc 103.7 | Preferred for body text |
| #1D1938 text on black | 1.24:1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D7D6F2
oklch(88.6% 0.038 287.2)
-
Step 300
300
#BDBAEB
oklch(80.8% 0.069 287.6)
-
Step 400
400
#9C96E2
oklch(70.8% 0.11 286.8)
-
Step 500
500
#857AD9
oklch(63.1% 0.14 287)
-
Step 600
600
#7061C7
oklch(55.7% 0.153 287.1)
-
Step 700
700
#5E4FAC
oklch(49.1% 0.143 287.3)
-
Step 800
800
#4C428B
oklch(42.7% 0.117 286.6)
-
Step 900
900
#3F386F
oklch(37.6% 0.092 287)
-
Step 950
950 (this color)
#1D1938
oklch(23.6% 0.058 287)
#1D1938 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) | #0D1E39 | 0.028 |
| Deuteranopia (no green cones) | #0D1C37 | 0.026 |
| Tritanopia (no blue cones) | #151F25 | 0.049 |
| Achromatopsia (no color) | #1D1D1D | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D1938
#1D1938
oklch(23.6% 0.058 287)
- #212000
#212000
oklch(23.7% 0.051 108)
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 #1D1938, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.040
- Oxford Blue #1B263B ΔE 0.042
- Dark #1B2431 ΔE 0.042
- Jet #212529 ΔE 0.057
- Navy Blue #001146 ΔE 0.061
- Midnight Purple #280137 ΔE 0.062
- Very Dark Purple #2A0134 ΔE 0.064
- Dark Indigo #1F0954 ΔE 0.064
Use #1D1938 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.