#221537
Closest named color: Midnight Purple (#280137). oklch(23.2% 0.064 299), rgb(34, 21, 55).
Aa
White text reads best on this color (17.06:1).
About this color
#221537 is a very dark, muted purple. In OKLCH its lightness is 23%, its chroma 0.064 and its hue 299°. 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 17.06:1.
| 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 | 17.06:1 |
Values
| HEX | #221537 |
| RGB | rgb(34, 21, 55) |
| HSL | hsl(263, 45%, 15%) |
| OKLCH | oklch(23.2% 0.064 299) |
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 #221537 | 17.06:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #221537 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #221537 text on white | 17.06:1 | AAA | Lc 103.8 | Preferred for body text |
| #221537 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DCD4F2
oklch(88.6% 0.042 297.7)
-
Step 300
300
#C7B6EC
oklch(80.9% 0.077 299.1)
-
Step 400
400
#AB8FE2
oklch(70.7% 0.122 298.8)
-
Step 500
500
#9771D9
oklch(63.1% 0.154 298.8)
-
Step 600
600
#8356C7
oklch(55.6% 0.17 299.2)
-
Step 700
700
#6F46AC
oklch(49.2% 0.157 299.1)
-
Step 800
800
#5A3A8B
oklch(42.7% 0.13 299)
-
Step 900
900
#4A336F
oklch(37.8% 0.101 299.2)
-
Step 950
950 (this color)
#221537
oklch(23.2% 0.064 299)
#221537 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) | #081C38 | 0.045 |
| Deuteranopia (no green cones) | #0C1C36 | 0.041 |
| Tritanopia (no blue cones) | #1E1C23 | 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°).
- #221537
#221537
oklch(23.2% 0.064 299)
- #1B2100
#1B2100
oklch(23.3% 0.055 119.1)
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 #221537, 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
- Rich Black #0D1B2A ΔE 0.050
- Dark Purple #35063E ΔE 0.052
- Dark #1B2431 ΔE 0.054
- Oxford Blue #1B263B ΔE 0.054
- Eggplant #380835 ΔE 0.055
- Deep Purple #36013F ΔE 0.060
Use #221537 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.