#231C49
Closest named color: Oxford Blue (#1B263B). oklch(26.3% 0.081 286.6), rgb(35, 28, 73).
Aa
White text reads best on this color (15.74:1).
About this color
#231C49 is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.081 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.046 away. White text reads best on it, at 15.74:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.33:1 |
| White text | 15.74:1 |
Values
| HEX | #231C49 |
| RGB | rgb(35, 28, 73) |
| HSL | hsl(249, 45%, 20%) |
| OKLCH | oklch(26.3% 0.081 286.6) |
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 #231C49 | 15.74:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #231C49 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #231C49 text on white | 15.74:1 | AAA | Lc 102.5 | Preferred for body text |
| #231C49 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
#F4F4FE
oklch(97% 0.013 286.1)
-
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
#BBB8FC
oklch(80.9% 0.095 286.1)
-
Step 400
400
#9B90FA
oklch(70.8% 0.152 286.6)
-
Step 500
500
#856FF7
oklch(63% 0.195 286.8)
-
Step 600
600
#7053E6
oklch(55.6% 0.212 286.4)
-
Step 700
700
#5F42C8
oklch(49.2% 0.197 286.7)
-
Step 800
800
#4D37A2
oklch(42.7% 0.164 286.7)
-
Step 900
900
#3F3280
oklch(37.7% 0.126 286.3)
-
Step 950
950 (this color)
#231C49
oklch(26.3% 0.081 286.6)
#231C49 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) | #04244B | 0.043 |
| Deuteranopia (no green cones) | #032248 | 0.043 |
| Tritanopia (no blue cones) | #17262F | 0.067 |
| Achromatopsia (no color) | #232323 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231C49
#231C49
oklch(26.3% 0.081 286.6)
- #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 #231C49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.046
- Dark Indigo #1F0954 ΔE 0.048
- Dark #1B2431 ΔE 0.058
- Space Cadet #2B2D42 ΔE 0.060
- Dark Purple #35063E ΔE 0.061
- Marine #042E60 ΔE 0.067
- Navy Blue #001146 ΔE 0.068
- Deep Purple #36013F ΔE 0.069
Use #231C49 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.