#211D4B
Closest named color: Oxford Blue (#1B263B). oklch(26.4% 0.082 283.1), rgb(33, 29, 75).
Aa
White text reads best on this color (15.64:1).
About this color
#211D4B is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.082 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.045 away. White text reads best on it, at 15.64:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.34:1 |
| White text | 15.64:1 |
Values
| HEX | #211D4B |
| RGB | rgb(33, 29, 75) |
| HSL | hsl(245, 44%, 20%) |
| OKLCH | oklch(26.4% 0.082 283.1) |
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 #211D4B | 15.64:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #211D4B | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #211D4B text on white | 15.64:1 | AAA | Lc 102.4 | Preferred for body text |
| #211D4B text on black | 1.34:1 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E7E8FD
oklch(93.7% 0.028 283.7)
-
Step 200
200
#D3D5FD
oklch(88.4% 0.055 283)
-
Step 300
300
#B7B9FE
oklch(80.9% 0.097 282.7)
-
Step 400
400
#9591FE
oklch(70.7% 0.156 283.3)
-
Step 500
500
#7D71FC
oklch(63.1% 0.2 282.9)
-
Step 600
600
#6954EB
oklch(55.6% 0.217 283.1)
-
Step 700
700
#5843CC
oklch(49.1% 0.201 283.1)
-
Step 800
800
#4838A5
oklch(42.6% 0.167 283.4)
-
Step 900
900
#3B3283
oklch(37.6% 0.131 283.1)
-
Step 950
950 (this color)
#211D4B
oklch(26.4% 0.082 283.1)
#211D4B 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) | #03254D | 0.040 |
| Deuteranopia (no green cones) | #00224A | 0.041 |
| Tritanopia (no blue cones) | #112730 | 0.070 |
| Achromatopsia (no color) | #232323 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #211D4B
#211D4B
oklch(26.4% 0.082 283.1)
- #2A2600
#2A2600
oklch(26.5% 0.056 103.5)
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 #211D4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.045
- Dark Indigo #1F0954 ΔE 0.047
- Dark #1B2431 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.060
- Marine #042E60 ΔE 0.062
- Navy Blue #001146 ΔE 0.066
- Dark Purple #35063E ΔE 0.066
- Midnight Blue #191970 ΔE 0.069
Use #211D4B 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.