#1F1337
Closest named color: Midnight Purple (#280137). oklch(22.5% 0.068 295.9), rgb(31, 19, 55).
Aa
White text reads best on this color (17.40:1).
About this color
#1F1337 is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.068 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.045 away. White text reads best on it, at 17.40:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.068) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.20:1 |
| White text | 17.40:1 |
Values
| HEX | #1F1337 |
| RGB | rgb(31, 19, 55) |
| HSL | hsl(260, 49%, 15%) |
| OKLCH | oklch(22.5% 0.068 295.9) |
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 #1F1337 | 17.40:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #1F1337 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #1F1337 text on white | 17.40:1 | AAA | Lc 104.1 | Preferred for body text |
| #1F1337 text on black | 1.20:1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DBD4F4
oklch(88.5% 0.044 295.5)
-
Step 300
300
#C5B7EF
oklch(81% 0.079 296)
-
Step 400
400
#A88FE7
oklch(70.7% 0.128 296)
-
Step 500
500
#9370E0
oklch(63% 0.164 295.7)
-
Step 600
600
#7F56CE
oklch(55.7% 0.178 295.8)
-
Step 700
700
#6B45B2
oklch(49.1% 0.166 295.7)
-
Step 800
800
#573A90
oklch(42.7% 0.136 295.6)
-
Step 900
900
#473373
oklch(37.7% 0.106 295.3)
-
Step 950
950 (this color)
#1F1337
oklch(22.5% 0.068 295.9)
#1F1337 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) | #041A38 | 0.045 |
| Deuteranopia (no green cones) | #061A36 | 0.043 |
| Tritanopia (no blue cones) | #191A22 | 0.053 |
| Achromatopsia (no color) | #1A1A1A | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F1337
#1F1337
oklch(22.5% 0.068 295.9)
- #1B1E00
#1B1E00
oklch(22.4% 0.051 115)
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 #1F1337, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.045
- Very Dark Purple #2A0134 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.050
- Dark Purple #35063E ΔE 0.056
- Dark Indigo #1F0954 ΔE 0.058
- Dark #1B2431 ΔE 0.059
- Eggplant #380835 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.060
Use #1F1337 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.