#1F112D
Closest named color: Rich Black (#0D1B2A). oklch(21.3% 0.056 305.3), rgb(31, 17, 45).
Aa
White text reads best on this color (17.85:1).
About this color
#1F112D is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.056 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.045 away. White text reads best on it, at 17.85:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.056) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.85:1 |
Values
| HEX | #1F112D |
| RGB | rgb(31, 17, 45) |
| HSL | hsl(270, 45%, 12%) |
| OKLCH | oklch(21.3% 0.056 305.3) |
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 #1F112D | 17.85:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #1F112D | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #1F112D text on white | 17.85:1 | AAA | Lc 104.5 | Preferred for body text |
| #1F112D text on black | 1.17:1 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F4
oklch(93.6% 0.018 306.7)
-
Step 200
200
#DFD3ED
oklch(88.4% 0.037 306.4)
-
Step 300
300
#CAB6E3
oklch(80.8% 0.066 305.1)
-
Step 400
400
#B08FD5
oklch(70.6% 0.106 305.5)
-
Step 500
500
#9D72CA
oklch(63.1% 0.135 305.4)
-
Step 600
600
#8859B7
oklch(55.6% 0.147 305.2)
-
Step 700
700
#73489D
oklch(49% 0.136 305.3)
-
Step 800
800
#5E3C80
oklch(42.8% 0.113 305.2)
-
Step 900
900
#4D3466
oklch(37.7% 0.087 305.7)
-
Step 950
950 (this color)
#1F112D
oklch(21.3% 0.056 305.3)
#1F112D 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) | #09172E | 0.042 |
| Deuteranopia (no green cones) | #0D182C | 0.039 |
| Tritanopia (no blue cones) | #1D161C | 0.042 |
| Achromatopsia (no color) | #171717 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F112D
#1F112D
oklch(21.3% 0.056 305.3)
- #131D00
#131D00
oklch(21.3% 0.054 125.6)
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 #1F112D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.045
- Very Dark Purple #2A0134 ΔE 0.047
- Midnight Purple #280137 ΔE 0.047
- Eggplant #380835 ΔE 0.061
- Dark #1B2431 ΔE 0.062
- Dark Purple #35063E ΔE 0.062
- Oxford Blue #1B263B ΔE 0.068
- Deep Purple #36013F ΔE 0.068
Use #1F112D 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.