#1F123A
Closest named color: Midnight Purple (#280137). oklch(22.5% 0.074 294.7), rgb(31, 18, 58).
Aa
White text reads best on this color (17.41:1).
About this color
#1F123A is a very dark, moderately saturated purple. In OKLCH its lightness is 23%, its chroma 0.074 and its hue 295°. 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 17.41:1.
| Hue family | Purples |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.074) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.20:1 |
| White text | 17.41:1 |
Values
| HEX | #1F123A |
| RGB | rgb(31, 18, 58) |
| HSL | hsl(260, 53%, 15%) |
| OKLCH | oklch(22.5% 0.074 294.7) |
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 #1F123A | 17.41:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #1F123A | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #1F123A text on white | 17.41:1 | AAA | Lc 104.1 | Preferred for body text |
| #1F123A 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#DBD3F7
oklch(88.5% 0.05 295.5)
-
Step 300
300
#C4B6F4
oklch(80.9% 0.088 294.7)
-
Step 400
400
#A78DEE
oklch(70.6% 0.14 294.9)
-
Step 500
500
#936EE9
oklch(63.2% 0.179 294.6)
-
Step 600
600
#7E52D7
oklch(55.6% 0.195 294.4)
-
Step 700
700
#6B41BA
oklch(49.1% 0.181 294.8)
-
Step 800
800
#573797
oklch(42.8% 0.15 294.6)
-
Step 900
900
#473178
oklch(37.7% 0.116 294.4)
-
Step 950
950 (this color)
#1F123A
oklch(22.5% 0.074 294.7)
#1F123A 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) | #001A3B | 0.050 |
| Deuteranopia (no green cones) | #021939 | 0.048 |
| Tritanopia (no blue cones) | #181B23 | 0.060 |
| Achromatopsia (no color) | #1A1A1A | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F123A
#1F123A
oklch(22.5% 0.074 294.7)
- #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 #1F123A, 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 0.046
- Dark Indigo #1F0954 ΔE 0.052
- Dark Purple #35063E ΔE 0.054
- Rich Black #0D1B2A ΔE 0.055
- Navy Blue #001146 ΔE 0.058
- Eggplant #380835 ΔE 0.060
- Deep Purple #36013F ΔE 0.060
Use #1F123A 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.