#231548
Closest named color: Dark Indigo (#1F0954). oklch(24.8% 0.09 291), rgb(35, 21, 72).
Aa
White text reads best on this color (16.50:1).
About this color
#231548 is a very dark, moderately saturated purple. In OKLCH its lightness is 25%, its chroma 0.090 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 0.034 away. White text reads best on it, at 16.50:1.
| Hue family | Purples |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.27:1 |
| White text | 16.50:1 |
Values
| HEX | #231548 |
| RGB | rgb(35, 21, 72) |
| HSL | hsl(256, 55%, 18%) |
| OKLCH | oklch(24.8% 0.09 291) |
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 #231548 | 16.50:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #231548 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #231548 text on white | 16.50:1 | AAA | Lc 103.2 | Preferred for body text |
| #231548 text on black | 1.27:1 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E7FE
oklch(93.6% 0.031 289.8)
-
Step 200
200
#D8D3FE
oklch(88.5% 0.059 290.5)
-
Step 300
300
#C0B5FF
oklch(80.9% 0.104 290.7)
-
Step 400
400
#A28BFF
oklch(70.7% 0.166 290.7)
-
Step 500
500
#8F67FF
oklch(63.2% 0.216 291.1)
-
Step 600
600
#7B46F0
oklch(55.6% 0.238 290.9)
-
Step 700
700
#6835D1
oklch(49.1% 0.221 290.8)
-
Step 800
800
#552EA9
oklch(42.8% 0.183 291.1)
-
Step 900
900
#452C86
oklch(37.8% 0.143 290.7)
-
Step 950
950 (this color)
#231548
oklch(24.8% 0.09 291)
#231548 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) | #00204A | 0.053 |
| Deuteranopia (no green cones) | #001E47 | 0.052 |
| Tritanopia (no blue cones) | #18212C | 0.072 |
| Achromatopsia (no color) | #1F1F1F | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231548
#231548
oklch(24.8% 0.09 291)
- #222300
#222300
oklch(24.7% 0.054 111.4)
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 #231548, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.034
- Dark Purple #35063E ΔE 0.052
- Midnight Purple #280137 ΔE 0.056
- Deep Purple #36013F ΔE 0.058
- Very Dark Purple #2A0134 ΔE 0.060
- Oxford Blue #1B263B ΔE 0.061
- Navy Blue #001146 ΔE 0.061
- Eggplant #380835 ΔE 0.063
Use #231548 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.