#231748
Closest named color: Dark Indigo (#1F0954). oklch(25.2% 0.087 290), rgb(35, 23, 72).
Aa
White text reads best on this color (16.30:1).
About this color
#231748 is a dark, moderately saturated purple. In OKLCH its lightness is 25%, its chroma 0.087 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.037 away. White text reads best on it, at 16.30:1.
| Hue family | Purples |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.28:1 |
| White text | 16.30:1 |
Values
| HEX | #231748 |
| RGB | rgb(35, 23, 72) |
| HSL | hsl(255, 52%, 19%) |
| OKLCH | oklch(25.2% 0.087 290) |
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 #231748 | 16.30:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #231748 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #231748 text on white | 16.30:1 | AAA | Lc 103.0 | Preferred for body text |
| #231748 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
#E9E7FD
oklch(93.6% 0.03 290)
-
Step 200
200
#D8D3FD
oklch(88.4% 0.058 290.6)
-
Step 300
300
#BFB5FF
oklch(80.8% 0.104 290.1)
-
Step 400
400
#A18BFF
oklch(70.7% 0.166 290.2)
-
Step 500
500
#8C69FD
oklch(63.1% 0.211 289.9)
-
Step 600
600
#784AED
oklch(55.6% 0.23 289.7)
-
Step 700
700
#6639CE
oklch(49.1% 0.214 290)
-
Step 800
800
#5331A6
oklch(42.7% 0.176 290.2)
-
Step 900
900
#442D84
oklch(37.7% 0.139 290.3)
-
Step 950
950 (this color)
#231748
oklch(25.2% 0.087 290)
#231748 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) | #00214A | 0.051 |
| Deuteranopia (no green cones) | #001F47 | 0.050 |
| Tritanopia (no blue cones) | #18222C | 0.071 |
| Achromatopsia (no color) | #202020 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231748
#231748
oklch(25.2% 0.087 290)
- #242400
#242400
oklch(25.2% 0.055 109.8)
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 #231748, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.037
- Dark Purple #35063E ΔE 0.054
- Oxford Blue #1B263B ΔE 0.056
- Midnight Purple #280137 ΔE 0.059
- Deep Purple #36013F ΔE 0.060
- Navy Blue #001146 ΔE 0.063
- Very Dark Purple #2A0134 ΔE 0.063
- Eggplant #380835 ΔE 0.064
Use #231748 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.