#2B2B59
Closest named color: Prussian Blue (#1D3557). oklch(31.5% 0.08 280.7), rgb(43, 43, 89).
Aa
White text reads best on this color (13.18:1).
About this color
#2B2B59 is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.080 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.035 away. White text reads best on it, at 13.18:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.59:1 |
| White text | 13.18:1 |
Values
| HEX | #2B2B59 |
| RGB | rgb(43, 43, 89) |
| HSL | hsl(240, 35%, 26%) |
| OKLCH | oklch(31.5% 0.08 280.7) |
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 #2B2B59 | 13.18:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #2B2B59 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #2B2B59 text on white | 13.18:1 | AAA | Lc 99.4 | Preferred for body text |
| #2B2B59 text on black | 1.59:1 | 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
#E6E8FD
oklch(93.6% 0.028 281.5)
-
Step 200
200
#D2D6FC
oklch(88.5% 0.052 280.5)
-
Step 300
300
#B5BAFD
oklch(80.9% 0.095 280.7)
-
Step 400
400
#9193FD
oklch(70.8% 0.153 280.9)
-
Step 500
500
#7874FA
oklch(63.1% 0.194 280.6)
-
Step 600
600
#6458E9
oklch(55.7% 0.211 280.8)
-
Step 700
700
#5346CB
oklch(49% 0.197 280.7)
-
Step 800
800
#443BA4
oklch(42.7% 0.163 280.8)
-
Step 900
900
#383482
oklch(37.6% 0.127 280.7)
-
Step 950
950 (this color)
#2B2B59
oklch(31.5% 0.08 280.7)
#2B2B59 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) | #17325B | 0.031 |
| Deuteranopia (no green cones) | #142E58 | 0.031 |
| Tritanopia (no blue cones) | #1A353D | 0.071 |
| Achromatopsia (no color) | #303030 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B2B59
#2B2B59
oklch(31.5% 0.08 280.7)
- #393200
#393200
oklch(31.5% 0.066 100.8)
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 #2B2B59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.035
- Marine #042E60 ΔE 0.043
- Space Cadet #2B2D42 ΔE 0.044
- Gunmetal #293241 ΔE 0.054
- Marine Blue #01386A ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.061
- Oxford Blue #1B263B ΔE 0.062
- Midnight Green #073B4C ΔE 0.069
Use #2B2B59 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.