#2B2557
Closest named color: Marine (#042E60). oklch(30.1% 0.087 285.4), rgb(43, 37, 87).
Aa
White text reads best on this color (13.95:1).
About this color
#2B2557 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.087 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.049 away. White text reads best on it, at 13.95:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.50:1 |
| White text | 13.95:1 |
Values
| HEX | #2B2557 |
| RGB | rgb(43, 37, 87) |
| HSL | hsl(247, 40%, 24%) |
| OKLCH | oklch(30.1% 0.087 285.4) |
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 #2B2557 | 13.95:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #2B2557 | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #2B2557 text on white | 13.95:1 | AAA | Lc 100.4 | Preferred for body text |
| #2B2557 text on black | 1.50:1 | 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
#D5D4FE
oklch(88.4% 0.058 286.3)
-
Step 300
300
#BAB8FF
oklch(81% 0.1 285.2)
-
Step 400
400
#988FFF
oklch(70.7% 0.16 285.2)
-
Step 500
500
#826DFF
oklch(63% 0.208 285.3)
-
Step 600
600
#6F4EF0
oklch(55.6% 0.229 285.6)
-
Step 700
700
#5D3DD1
oklch(49.1% 0.213 285.3)
-
Step 800
800
#4C34A9
oklch(42.7% 0.177 285.6)
-
Step 900
900
#3E3086
oklch(37.8% 0.138 285.2)
-
Step 950
950 (this color)
#2B2557
oklch(30.1% 0.087 285.4)
#2B2557 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) | #0C2D59 | 0.043 |
| Deuteranopia (no green cones) | #0A2B56 | 0.043 |
| Tritanopia (no blue cones) | #1C303A | 0.073 |
| Achromatopsia (no color) | #2C2C2C | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B2557
#2B2557
oklch(30.1% 0.087 285.4)
- #332F00
#332F00
oklch(30% 0.063 104.5)
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 #2B2557, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.050
- Oxford Blue #1B263B ΔE 0.060
- Midnight Blue #191970 ΔE 0.063
- Gunmetal #293241 ΔE 0.063
- Marine Blue #01386A ΔE 0.068
- Dark Indigo #1F0954 ΔE 0.071
Use #2B2557 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.