#231940
Closest named color: Oxford Blue (#1B263B). oklch(24.9% 0.071 292.2), rgb(35, 25, 64).
Aa
White text reads best on this color (16.34:1).
About this color
#231940 is a very dark, moderately saturated purple. In OKLCH its lightness is 25%, its chroma 0.071 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.045 away. White text reads best on it, at 16.34:1.
| Hue family | Purples |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.28:1 |
| White text | 16.34:1 |
Values
| HEX | #231940 |
| RGB | rgb(35, 25, 64) |
| HSL | hsl(255, 44%, 17%) |
| OKLCH | oklch(24.9% 0.071 292.2) |
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 #231940 | 16.34:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #231940 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #231940 text on white | 16.34:1 | AAA | Lc 103.2 | Preferred for body text |
| #231940 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#D9D4F6
oklch(88.5% 0.047 292.2)
-
Step 300
300
#C1B7F3
oklch(80.8% 0.084 292)
-
Step 400
400
#A38FED
oklch(70.6% 0.136 292.3)
-
Step 500
500
#8E71E7
oklch(63.1% 0.172 292.1)
-
Step 600
600
#7A55D5
oklch(55.5% 0.188 292.5)
-
Step 700
700
#6745B9
oklch(49.2% 0.174 292.3)
-
Step 800
800
#543996
oklch(42.7% 0.146 292.5)
-
Step 900
900
#453377
oklch(37.8% 0.112 292.4)
-
Step 950
950 (this color)
#231940
oklch(24.9% 0.071 292.2)
#231940 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) | #082041 | 0.042 |
| Deuteranopia (no green cones) | #091F3F | 0.041 |
| Tritanopia (no blue cones) | #1B2129 | 0.058 |
| Achromatopsia (no color) | #202020 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231940
#231940
oklch(24.9% 0.071 292.2)
- #222400
#222400
oklch(25% 0.056 112.9)
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 #231940, 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 #1B2431 ΔE 0.052
- Dark Indigo #1F0954 ΔE 0.052
- Dark Purple #35063E ΔE 0.054
- Midnight Purple #280137 ΔE 0.059
- Rich Black #0D1B2A ΔE 0.059
- Eggplant #380835 ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.061
Use #231940 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.