#201B4B
Closest named color: Dark Indigo (#1F0954). oklch(25.9% 0.086 283.4), rgb(32, 27, 75).
Aa
White text reads best on this color (15.91:1).
About this color
#201B4B is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.086 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.042 away. White text reads best on it, at 15.91:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.31:1 |
| White text | 15.91:1 |
Values
| HEX | #201B4B |
| RGB | rgb(32, 27, 75) |
| HSL | hsl(246, 47%, 20%) |
| OKLCH | oklch(25.9% 0.086 283.4) |
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 #201B4B | 15.91:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #201B4B | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #201B4B text on white | 15.91:1 | AAA | Lc 102.7 | Preferred for body text |
| #201B4B text on black | 1.31:1 | 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
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E8FE
oklch(93.7% 0.03 283.7)
-
Step 200
200
#D3D5FE
oklch(88.5% 0.056 283)
-
Step 300
300
#B8B9FF
oklch(81% 0.098 283.3)
-
Step 400
400
#9591FF
oklch(70.8% 0.158 283.2)
-
Step 500
500
#7E6FFF
oklch(63% 0.206 283.5)
-
Step 600
600
#6A51EF
oklch(55.5% 0.225 283.5)
-
Step 700
700
#5940D0
oklch(49.1% 0.209 283.5)
-
Step 800
800
#4836A8
oklch(42.6% 0.174 283.4)
-
Step 900
900
#3C3185
oklch(37.7% 0.135 283.8)
-
Step 950
950 (this color)
#201B4B
oklch(25.9% 0.086 283.4)
#201B4B 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) | #00244D | 0.043 |
| Deuteranopia (no green cones) | #00204A | 0.041 |
| Tritanopia (no blue cones) | #0F2630 | 0.072 |
| Achromatopsia (no color) | #222222 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #201B4B
#201B4B
oklch(25.9% 0.086 283.4)
- #292500
#292500
oklch(26.1% 0.055 103.4)
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 #201B4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.042
- Oxford Blue #1B263B ΔE 0.049
- Navy Blue #001146 ΔE 0.062
- Dark #1B2431 ΔE 0.062
- Dark Purple #35063E ΔE 0.065
- Marine #042E60 ΔE 0.066
- Space Cadet #2B2D42 ΔE 0.066
- Midnight Blue #191970 ΔE 0.068
Use #201B4B 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.