#221841
Closest named color: Oxford Blue (#1B263B). oklch(24.7% 0.075 291.2), rgb(34, 24, 65).
Aa
White text reads best on this color (16.47:1).
About this color
#221841 is a very dark, moderately saturated purple. In OKLCH its lightness is 25%, its chroma 0.075 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.048 away. White text reads best on it, at 16.47:1.
| Hue family | Purples |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.075) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.27:1 |
| White text | 16.47:1 |
Values
| HEX | #221841 |
| RGB | rgb(34, 24, 65) |
| HSL | hsl(255, 46%, 17%) |
| OKLCH | oklch(24.7% 0.075 291.2) |
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 #221841 | 16.47:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #221841 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #221841 text on white | 16.47:1 | AAA | Lc 103.3 | Preferred for body text |
| #221841 text on black | 1.27:1 | 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
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C0B7F6
oklch(80.9% 0.088 290.8)
-
Step 400
400
#A28FF1
oklch(70.7% 0.141 291.3)
-
Step 500
500
#8D6FEC
oklch(63% 0.181 291.4)
-
Step 600
600
#7854DB
oklch(55.6% 0.197 290.9)
-
Step 700
700
#6643BE
oklch(49.2% 0.183 291.3)
-
Step 800
800
#533899
oklch(42.7% 0.151 291.5)
-
Step 900
900
#44327A
oklch(37.7% 0.118 291.2)
-
Step 950
950 (this color)
#221841
oklch(24.7% 0.075 291.2)
#221841 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) | #042042 | 0.045 |
| Deuteranopia (no green cones) | #061E40 | 0.043 |
| Tritanopia (no blue cones) | #192129 | 0.062 |
| Achromatopsia (no color) | #1F1F1F | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #221841
#221841
oklch(24.7% 0.075 291.2)
- #222300
#222300
oklch(24.7% 0.054 111.4)
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 #221841, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.048
- Dark Indigo #1F0954 ΔE 0.048
- Dark Purple #35063E ΔE 0.054
- Dark #1B2431 ΔE 0.055
- Midnight Purple #280137 ΔE 0.057
- Very Dark Purple #2A0134 ΔE 0.060
- Rich Black #0D1B2A ΔE 0.060
- Eggplant #380835 ΔE 0.061
Use #221841 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.