#231A48
Closest named color: Dark Indigo (#1F0954). oklch(25.8% 0.082 288.2), rgb(35, 26, 72).
Aa
White text reads best on this color (15.99:1).
About this color
#231A48 is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.082 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.044 away. White text reads best on it, at 15.99:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.31:1 |
| White text | 15.99:1 |
Values
| HEX | #231A48 |
| RGB | rgb(35, 26, 72) |
| HSL | hsl(252, 47%, 19%) |
| OKLCH | oklch(25.8% 0.082 288.2) |
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 #231A48 | 15.99:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #231A48 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #231A48 text on white | 15.99:1 | AAA | Lc 102.8 | Preferred for body text |
| #231A48 text on black | 1.31:1 | 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
#E8E7FC
oklch(93.5% 0.028 288)
-
Step 200
200
#D7D4FC
oklch(88.5% 0.055 288.7)
-
Step 300
300
#BDB7FC
oklch(80.9% 0.097 288)
-
Step 400
400
#9D8EFB
oklch(70.6% 0.156 288)
-
Step 500
500
#886DF8
oklch(63% 0.199 288.3)
-
Step 600
600
#7450E7
oklch(55.6% 0.216 288.2)
-
Step 700
700
#623FC9
oklch(49.1% 0.201 288.3)
-
Step 800
800
#4F35A3
oklch(42.6% 0.168 288)
-
Step 900
900
#413081
oklch(37.6% 0.13 288.1)
-
Step 950
950 (this color)
#231A48
oklch(25.8% 0.082 288.2)
#231A48 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) | #01234A | 0.048 |
| Deuteranopia (no green cones) | #012047 | 0.047 |
| Tritanopia (no blue cones) | #17242E | 0.067 |
| Achromatopsia (no color) | #222222 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231A48
#231A48
oklch(25.8% 0.082 288.2)
- #262500
#262500
oklch(25.7% 0.056 108.2)
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 #231A48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.044
- Oxford Blue #1B263B ΔE 0.049
- Dark Purple #35063E ΔE 0.058
- Dark #1B2431 ΔE 0.060
- Deep Purple #36013F ΔE 0.065
- Space Cadet #2B2D42 ΔE 0.065
- Navy Blue #001146 ΔE 0.065
- Midnight Purple #280137 ΔE 0.066
Use #231A48 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.