#1F051B
Closest named color: Very Dark Purple (#2A0134). oklch(17.6% 0.058 334.1), rgb(31, 5, 27).
Aa
White text reads best on this color (19.16:1).
About this color
#1F051B is a very dark, muted purple. In OKLCH its lightness is 18%, its chroma 0.058 and its hue 334°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Very Dark Purple (#2A0134), ΔE 0.056 away. White text reads best on it, at 19.16:1.
| Hue family | Purples |
| Lightness | very dark (18%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Very Dark Purple (#2A0134) |
| Black text | 1.09:1 |
| White text | 19.16:1 |
Values
| HEX | #1F051B |
| RGB | rgb(31, 5, 27) |
| HSL | hsl(309, 72%, 7%) |
| OKLCH | oklch(17.6% 0.058 334.1) |
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 #1F051B | 19.16:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #1F051B | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #1F051B text on white | 19.16:1 | AAA | Lc 105.3 | Preferred for body text |
| #1F051B text on black | 1.09:1 | 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
#FAF3F8
oklch(97.1% 0.01 335.5)
-
Step 100
100
#F3E5EF
oklch(93.6% 0.02 335.7)
-
Step 200
200
#EAD0E4
oklch(88.5% 0.039 333.8)
-
Step 300
300
#DDB0D3
oklch(80.8% 0.07 334.1)
-
Step 400
400
#CB86BD
oklch(70.8% 0.111 334.3)
-
Step 500
500
#BC66AC
oklch(63.2% 0.141 334.4)
-
Step 600
600
#A74B98
oklch(55.7% 0.154 334.1)
-
Step 700
700
#8F3B81
oklch(49.1% 0.143 334.5)
-
Step 800
800
#743269
oklch(42.8% 0.118 334.2)
-
Step 900
900
#5E2C55
oklch(37.6% 0.093 334.5)
-
Step 950
950 (this color)
#1F051B
oklch(17.6% 0.058 334.1)
#1F051B 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) | #050D1C | 0.061 |
| Deuteranopia (no green cones) | #0C101A | 0.054 |
| Tritanopia (no blue cones) | #21060E | 0.029 |
| Achromatopsia (no color) | #0F0F0F | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F051B
#1F051B
oklch(17.6% 0.058 334.1)
- #001607
#001607
oklch(17.6% 0.045 153.4)
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 #1F051B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Purple #2A0134 ΔE 0.056
- Midnight Purple #280137 ΔE 0.060
- Very Dark Brown #1D0200 ΔE 0.062
- Almost Black #070D0D ΔE 0.070
- Rich Navy #001219 ΔE 0.076
- Rich Black #0D1B2A ΔE 0.077
- Eggplant #380835 ΔE 0.079
- Dark Maroon #3C0008 ΔE 0.082
Use #1F051B 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.