#221639
Closest named color: Midnight Purple (#280137). oklch(23.6% 0.066 296.9), rgb(34, 22, 57).
Aa
White text reads best on this color (16.91:1).
About this color
#221639 is a very dark, muted purple. In OKLCH its lightness is 24%, its chroma 0.066 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.051 away. White text reads best on it, at 16.91:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | muted (0.066) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.24:1 |
| White text | 16.91:1 |
Values
| HEX | #221639 |
| RGB | rgb(34, 22, 57) |
| HSL | hsl(261, 44%, 15%) |
| OKLCH | oklch(23.6% 0.066 296.9) |
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 #221639 | 16.91:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #221639 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #221639 text on white | 16.91:1 | AAA | Lc 103.7 | Preferred for body text |
| #221639 text on black | 1.24:1 | 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
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DCD4F3
oklch(88.6% 0.043 297.3)
-
Step 300
300
#C5B7ED
oklch(80.9% 0.077 296.5)
-
Step 400
400
#A98FE4
oklch(70.7% 0.124 297.2)
-
Step 500
500
#9571DC
oklch(63.1% 0.158 297.2)
-
Step 600
600
#8057CA
oklch(55.7% 0.172 296.9)
-
Step 700
700
#6C46AF
oklch(49.1% 0.161 296.7)
-
Step 800
800
#583A8D
oklch(42.6% 0.133 297.1)
-
Step 900
900
#483371
oklch(37.7% 0.103 296.8)
-
Step 950
950 (this color)
#221639
oklch(23.6% 0.066 296.9)
#221639 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) | #081D3A | 0.044 |
| Deuteranopia (no green cones) | #0B1C38 | 0.041 |
| Tritanopia (no blue cones) | #1D1D24 | 0.053 |
| Achromatopsia (no color) | #1D1D1D | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #221639
#221639
oklch(23.6% 0.066 296.9)
- #1D2100
#1D2100
oklch(23.5% 0.054 116.2)
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 #221639, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.051
- Rich Black #0D1B2A ΔE 0.051
- Very Dark Purple #2A0134 ΔE 0.052
- Dark #1B2431 ΔE 0.052
- Dark Purple #35063E ΔE 0.053
- Eggplant #380835 ΔE 0.056
- Dark Indigo #1F0954 ΔE 0.059
Use #221639 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.