#231746
Closest named color: Dark Indigo (#1F0954). oklch(25% 0.084 290.8), rgb(35, 23, 70).
Aa
White text reads best on this color (16.37:1).
About this color
#231746 is a very dark, moderately saturated purple. In OKLCH its lightness is 25%, its chroma 0.084 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.040 away. White text reads best on it, at 16.37:1.
| Hue family | Purples |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.084) |
| Temperature | in between |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.28:1 |
| White text | 16.37:1 |
Values
| HEX | #231746 |
| RGB | rgb(35, 23, 70) |
| HSL | hsl(255, 51%, 18%) |
| OKLCH | oklch(25% 0.084 290.8) |
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 #231746 | 16.37:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #231746 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #231746 text on white | 16.37:1 | AAA | Lc 103.1 | Preferred for body text |
| #231746 text on black | 1.28:1 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FC
oklch(93.6% 0.028 290.2)
-
Step 200
200
#D8D3FC
oklch(88.4% 0.056 290.8)
-
Step 300
300
#C0B6FD
oklch(81% 0.1 290.4)
-
Step 400
400
#A28CFB
oklch(70.7% 0.159 290.9)
-
Step 500
500
#8D6AF9
oklch(63.1% 0.204 290.6)
-
Step 600
600
#794CE8
oklch(55.6% 0.222 290.6)
-
Step 700
700
#673BC9
oklch(49% 0.206 291)
-
Step 800
800
#5333A3
oklch(42.7% 0.17 290.5)
-
Step 900
900
#442E81
oklch(37.6% 0.133 290.8)
-
Step 950
950 (this color)
#231746
oklch(25% 0.084 290.8)
#231746 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) | #002048 | 0.051 |
| Deuteranopia (no green cones) | #001F45 | 0.051 |
| Tritanopia (no blue cones) | #19222B | 0.070 |
| Achromatopsia (no color) | #202020 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231746
#231746
oklch(25% 0.084 290.8)
- #232400
#232400
oklch(25.1% 0.055 111.3)
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 #231746, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.040
- Dark Purple #35063E ΔE 0.053
- Oxford Blue #1B263B ΔE 0.054
- Midnight Purple #280137 ΔE 0.058
- Deep Purple #36013F ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.061
- Eggplant #380835 ΔE 0.062
- Navy Blue #001146 ΔE 0.063
Use #231746 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.