#2B2B64
Closest named color: Marine (#042E60). oklch(32.3% 0.098 279.4), rgb(43, 43, 100).
Aa
White text reads best on this color (12.86:1).
About this color
#2B2B64 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.098 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.043 away. White text reads best on it, at 12.86:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.63:1 |
| White text | 12.86:1 |
Values
| HEX | #2B2B64 |
| RGB | rgb(43, 43, 100) |
| HSL | hsl(240, 40%, 28%) |
| OKLCH | oklch(32.3% 0.098 279.4) |
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 #2B2B64 | 12.86:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #2B2B64 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #2B2B64 text on white | 12.86:1 | AAA | Lc 98.8 | Preferred for body text |
| #2B2B64 text on black | 1.63:1 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E8FF
oklch(93.6% 0.031 279.9)
-
Step 200
200
#D1D6FF
oklch(88.5% 0.057 279.7)
-
Step 300
300
#B3BAFF
oklch(80.8% 0.098 279.5)
-
Step 400
400
#8E93FF
oklch(70.6% 0.156 279.6)
-
Step 500
500
#7573FF
oklch(63% 0.202 279.5)
-
Step 600
600
#604DFF
oklch(55.6% 0.25 279.3)
-
Step 700
700
#5138E2
oklch(49% 0.24 279.5)
-
Step 800
800
#4131B7
oklch(42.7% 0.199 279.2)
-
Step 900
900
#362E90
oklch(37.6% 0.155 279.6)
-
Step 950
950 (this color)
#2B2B64
oklch(32.3% 0.098 279.4)
#2B2B64 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) | #0A3466 | 0.041 |
| Deuteranopia (no green cones) | #023063 | 0.043 |
| Tritanopia (no blue cones) | #113843 | 0.085 |
| Achromatopsia (no color) | #323232 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B2B64
#2B2B64
oklch(32.3% 0.098 279.4)
- #3C3400
#3C3400
oklch(32.4% 0.067 99.8)
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 #2B2B64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.044
- Marine Blue #01386A ΔE 0.050
- Midnight Blue #191970 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.063
- Gunmetal #293241 ΔE 0.071
- Dark Blue Grey #1F3B4D ΔE 0.072
- Twilight Blue #0A437A ΔE 0.075
Use #2B2B64 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.