#231537
Closest named color: Midnight Purple (#280137). oklch(23.4% 0.064 300.5), rgb(35, 21, 55).
Aa
White text reads best on this color (17.01:1).
About this color
#231537 is a very dark, muted purple. In OKLCH its lightness is 23%, its chroma 0.064 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.048 away. White text reads best on it, at 17.01:1.
| Hue family | Purples |
| Lightness | very dark (23%) |
| Chroma | muted (0.064) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.23:1 |
| White text | 17.01:1 |
Values
| HEX | #231537 |
| RGB | rgb(35, 21, 55) |
| HSL | hsl(265, 45%, 15%) |
| OKLCH | oklch(23.4% 0.064 300.5) |
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 #231537 | 17.01:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #231537 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #231537 text on white | 17.01:1 | AAA | Lc 103.8 | Preferred for body text |
| #231537 text on black | 1.23:1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F7
oklch(93.7% 0.022 300.2)
-
Step 200
200
#DDD3F2
oklch(88.4% 0.043 300.2)
-
Step 300
300
#C8B6EB
oklch(80.9% 0.076 300.3)
-
Step 400
400
#AD8EE1
oklch(70.7% 0.122 300.5)
-
Step 500
500
#9A70D8
oklch(63.2% 0.155 300.7)
-
Step 600
600
#8555C6
oklch(55.6% 0.171 300.6)
-
Step 700
700
#7145AB
oklch(49.2% 0.158 300.6)
-
Step 800
800
#5C398A
oklch(42.7% 0.131 300.9)
-
Step 900
900
#4B326F
oklch(37.7% 0.103 300.5)
-
Step 950
950 (this color)
#231537
oklch(23.4% 0.064 300.5)
#231537 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) | #091C38 | 0.045 |
| Deuteranopia (no green cones) | #0D1C36 | 0.042 |
| Tritanopia (no blue cones) | #1F1C23 | 0.051 |
| Achromatopsia (no color) | #1C1C1C | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231537
#231537
oklch(23.4% 0.064 300.5)
- #1A2100
#1A2100
oklch(23.2% 0.055 120.5)
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 #231537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.048
- Very Dark Purple #2A0134 ΔE 0.049
- Dark Purple #35063E ΔE 0.051
- Rich Black #0D1B2A ΔE 0.052
- Eggplant #380835 ΔE 0.053
- Dark #1B2431 ΔE 0.054
- Oxford Blue #1B263B ΔE 0.054
- Deep Purple #36013F ΔE 0.058
Use #231537 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.