#2B285B
Closest named color: Prussian Blue (#1D3557). oklch(31% 0.089 282.6), rgb(43, 40, 91).
Aa
White text reads best on this color (13.48:1).
About this color
#2B285B is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.089 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.044 away. White text reads best on it, at 13.48:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.55:1 |
| White text | 13.48:1 |
Values
| HEX | #2B285B |
| RGB | rgb(43, 40, 91) |
| HSL | hsl(244, 39%, 26%) |
| OKLCH | oklch(31% 0.089 282.6) |
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 #2B285B | 13.48:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #2B285B | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #2B285B text on white | 13.48:1 | AAA | Lc 99.8 | Preferred for body text |
| #2B285B text on black | 1.55:1 | 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
#E6E8FE
oklch(93.6% 0.03 281.7)
-
Step 200
200
#D3D5FF
oklch(88.5% 0.058 283)
-
Step 300
300
#B7B9FF
oklch(80.9% 0.098 282.7)
-
Step 400
400
#9491FF
oklch(70.7% 0.158 282.8)
-
Step 500
500
#7C70FF
oklch(63.1% 0.205 282.6)
-
Step 600
600
#6850F4
oklch(55.7% 0.233 282.4)
-
Step 700
700
#583ED4
oklch(49.1% 0.217 282.9)
-
Step 800
800
#4735AC
oklch(42.7% 0.18 282.5)
-
Step 900
900
#3B3088
oklch(37.7% 0.141 283)
-
Step 950
950 (this color)
#2B285B
oklch(31% 0.089 282.6)
#2B285B 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) | #0E305D | 0.040 |
| Deuteranopia (no green cones) | #0B2D5A | 0.040 |
| Tritanopia (no blue cones) | #19333D | 0.076 |
| Achromatopsia (no color) | #2E2E2E | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B285B
#2B285B
oklch(31% 0.089 282.6)
- #373100
#373100
oklch(31% 0.065 102)
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 #2B285B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.044
- Marine #042E60 ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.051
- Marine Blue #01386A ΔE 0.059
- Gunmetal #293241 ΔE 0.062
- Midnight Blue #191970 ΔE 0.062
- Oxford Blue #1B263B ΔE 0.065
- Dark Blue Grey #1F3B4D ΔE 0.070
Use #2B285B 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.