#231C48
Closest named color: Oxford Blue (#1B263B). oklch(26.2% 0.079 286.9), rgb(35, 28, 72).
Aa
White text reads best on this color (15.77:1).
About this color
#231C48 is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.079 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.045 away. White text reads best on it, at 15.77:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.33:1 |
| White text | 15.77:1 |
Values
| HEX | #231C48 |
| RGB | rgb(35, 28, 72) |
| HSL | hsl(250, 44%, 20%) |
| OKLCH | oklch(26.2% 0.079 286.9) |
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 #231C48 | 15.77:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #231C48 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #231C48 text on white | 15.77:1 | AAA | Lc 102.6 | Preferred for body text |
| #231C48 text on black | 1.33:1 | 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
#E8E8FC
oklch(93.7% 0.027 285.9)
-
Step 200
200
#D6D5FB
oklch(88.6% 0.052 286.5)
-
Step 300
300
#BCB8FA
oklch(80.9% 0.093 286.9)
-
Step 400
400
#9B90F8
oklch(70.7% 0.149 286.8)
-
Step 500
500
#8570F5
oklch(63.1% 0.191 286.8)
-
Step 600
600
#7154E4
oklch(55.7% 0.208 286.8)
-
Step 700
700
#5F43C6
oklch(49.2% 0.193 286.8)
-
Step 800
800
#4D38A0
oklch(42.7% 0.16 286.8)
-
Step 900
900
#40327F
oklch(37.7% 0.125 287.2)
-
Step 950
950 (this color)
#231C48
oklch(26.2% 0.079 286.9)
#231C48 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) | #05244A | 0.042 |
| Deuteranopia (no green cones) | #052147 | 0.041 |
| Tritanopia (no blue cones) | #17262E | 0.068 |
| Achromatopsia (no color) | #232323 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231C48
#231C48
oklch(26.2% 0.079 286.9)
- #282600
#282600
oklch(26.2% 0.056 106.7)
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 #231C48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.045
- Dark Indigo #1F0954 ΔE 0.049
- Dark #1B2431 ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.060
- Dark Purple #35063E ΔE 0.061
- Navy Blue #001146 ΔE 0.068
- Marine #042E60 ΔE 0.068
- Deep Purple #36013F ΔE 0.068
Use #231C48 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.