#1F1237
Closest named color: Midnight Purple (#280137). oklch(22.3% 0.069 296.5), rgb(31, 18, 55).
Aa
White text reads best on this color (17.50:1).
About this color
#1F1237 is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.069 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.043 away. White text reads best on it, at 17.50:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.19:1 |
| White text | 17.50:1 |
Values
| HEX | #1F1237 |
| RGB | rgb(31, 18, 55) |
| HSL | hsl(261, 51%, 14%) |
| OKLCH | oklch(22.3% 0.069 296.5) |
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 #1F1237 | 17.50:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #1F1237 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #1F1237 text on white | 17.50:1 | AAA | Lc 104.2 | Preferred for body text |
| #1F1237 text on black | 1.19:1 | 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
#DBD3F4
oklch(88.3% 0.046 296.6)
-
Step 300
300
#C5B6F0
oklch(80.9% 0.082 296.4)
-
Step 400
400
#A98EE8
oklch(70.7% 0.131 296.7)
-
Step 500
500
#956FE2
oklch(63.1% 0.169 296.5)
-
Step 600
600
#8054CF
oklch(55.5% 0.182 296.5)
-
Step 700
700
#6D43B3
oklch(49% 0.17 296.9)
-
Step 800
800
#583891
oklch(42.6% 0.141 296.5)
-
Step 900
900
#483274
oklch(37.7% 0.109 296.1)
-
Step 950
950 (this color)
#1F1237
oklch(22.3% 0.069 296.5)
#1F1237 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) | #021A38 | 0.049 |
| Deuteranopia (no green cones) | #051936 | 0.045 |
| Tritanopia (no blue cones) | #191A22 | 0.055 |
| Achromatopsia (no color) | #191919 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F1237
#1F1237
oklch(22.3% 0.069 296.5)
- #1A1E00
#1A1E00
oklch(22.3% 0.051 116.6)
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 #1F1237, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.043
- Very Dark Purple #2A0134 ΔE 0.045
- Rich Black #0D1B2A ΔE 0.051
- Dark Purple #35063E ΔE 0.055
- Dark Indigo #1F0954 ΔE 0.057
- Eggplant #380835 ΔE 0.059
- Navy Blue #001146 ΔE 0.060
- Deep Purple #36013F ΔE 0.061
Use #1F1237 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.