#211840
Closest named color: Oxford Blue (#1B263B). oklch(24.5% 0.073 290.3), rgb(33, 24, 64).
Aa
White text reads best on this color (16.54:1).
About this color
#211840 is a very dark, moderately saturated purple. In OKLCH its lightness is 24%, its chroma 0.073 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.047 away. White text reads best on it, at 16.54:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.073) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.26:1 |
| White text | 16.54:1 |
Values
| HEX | #211840 |
| RGB | rgb(33, 24, 64) |
| HSL | hsl(253, 45%, 17%) |
| OKLCH | oklch(24.5% 0.073 290.3) |
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 #211840 | 16.54:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #211840 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #211840 text on white | 16.54:1 | AAA | Lc 103.3 | Preferred for body text |
| #211840 text on black | 1.26:1 | 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
#D8D4F7
oklch(88.4% 0.048 290.6)
-
Step 300
300
#C0B7F5
oklch(80.8% 0.087 291)
-
Step 400
400
#A090F0
oklch(70.7% 0.138 290)
-
Step 500
500
#8B71EB
oklch(63.1% 0.177 290.2)
-
Step 600
600
#7756D9
oklch(55.7% 0.191 290.4)
-
Step 700
700
#6445BC
oklch(49.1% 0.178 290.3)
-
Step 800
800
#513998
oklch(42.6% 0.148 290.3)
-
Step 900
900
#433379
oklch(37.8% 0.115 290.4)
-
Step 950
950 (this color)
#211840
oklch(24.5% 0.073 290.3)
#211840 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) | #051F41 | 0.042 |
| Deuteranopia (no green cones) | #061E3F | 0.041 |
| Tritanopia (no blue cones) | #182129 | 0.060 |
| Achromatopsia (no color) | #1F1F1F | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #211840
#211840
oklch(24.5% 0.073 290.3)
- #222200
#222200
oklch(24.4% 0.053 109.8)
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 #211840, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.047
- Dark Indigo #1F0954 ΔE 0.049
- Dark #1B2431 ΔE 0.054
- Dark Purple #35063E ΔE 0.056
- Midnight Purple #280137 ΔE 0.057
- Rich Black #0D1B2A ΔE 0.057
- Very Dark Purple #2A0134 ΔE 0.060
- Navy Blue #001146 ΔE 0.061
Use #211840 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.