#231328
Closest named color: Rich Black (#0D1B2A). oklch(21.9% 0.046 317.8), rgb(35, 19, 40).
Aa
White text reads best on this color (17.56:1).
About this color
#231328 is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.046 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.045 away. White text reads best on it, at 17.56:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.046) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.56:1 |
Values
| HEX | #231328 |
| RGB | rgb(35, 19, 40) |
| HSL | hsl(286, 36%, 12%) |
| OKLCH | oklch(21.9% 0.046 317.8) |
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 #231328 | 17.56:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #231328 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #231328 text on white | 17.56:1 | AAA | Lc 104.3 | Preferred for body text |
| #231328 text on black | 1.19:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EEE7F1
oklch(93.6% 0.015 316)
-
Step 200
200
#E2D3E6
oklch(88.5% 0.03 319.1)
-
Step 300
300
#D0B6D8
oklch(80.9% 0.055 318.2)
-
Step 400
400
#B790C4
oklch(70.7% 0.086 317.6)
-
Step 500
500
#A573B5
oklch(63.1% 0.111 317.7)
-
Step 600
600
#905BA1
oklch(55.7% 0.12 317.6)
-
Step 700
700
#7A4A89
oklch(49% 0.111 317.8)
-
Step 800
800
#643D70
oklch(42.7% 0.094 317.9)
-
Step 900
900
#51355A
oklch(37.7% 0.071 317.7)
-
Step 950
950 (this color)
#231328
oklch(21.9% 0.046 317.8)
#231328 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) | #101829 | 0.039 |
| Deuteranopia (no green cones) | #141A27 | 0.036 |
| Tritanopia (no blue cones) | #23161B | 0.030 |
| Achromatopsia (no color) | #191919 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231328
#231328
oklch(21.9% 0.046 317.8)
- #0F1F09
#0F1F09
oklch(21.8% 0.046 137.8)
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 #231328, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.045
- Very Dark Purple #2A0134 ΔE 0.054
- Dark #1B2431 ΔE 0.056
- Midnight Purple #280137 ΔE 0.056
- Eggplant #380835 ΔE 0.058
- Jet #212529 ΔE 0.061
- Oxford Blue #1B263B ΔE 0.065
- Dark Purple #35063E ΔE 0.065
Use #231328 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.