#2B2E5F
Closest named color: Prussian Blue (#1D3557). oklch(32.6% 0.085 277.9), rgb(43, 46, 95).
Aa
White text reads best on this color (12.66:1).
About this color
#2B2E5F is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.085 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.033 away. White text reads best on it, at 12.66:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.65:1 |
| White text | 12.66:1 |
Values
| HEX | #2B2E5F |
| RGB | rgb(43, 46, 95) |
| HSL | hsl(237, 38%, 27%) |
| OKLCH | oklch(32.6% 0.085 277.9) |
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 #2B2E5F | 12.66:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #2B2E5F | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #2B2E5F text on white | 12.66:1 | AAA | Lc 98.5 | Preferred for body text |
| #2B2E5F text on black | 1.65:1 | 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 900.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D3D7F1
oklch(88.4% 0.036 278.7)
-
Step 300
300
#B6BDEA
oklch(80.8% 0.064 277.9)
-
Step 400
400
#919AE0
oklch(70.6% 0.103 277.8)
-
Step 500
500
#7880D7
oklch(63.2% 0.13 278)
-
Step 600
600
#6167C5
oklch(55.5% 0.144 277.9)
-
Step 700
700
#5156AA
oklch(49.2% 0.132 277.8)
-
Step 800
800
#42468A
oklch(42.6% 0.111 278.1)
-
Step 900
900 (this color)
#2B2E5F
oklch(32.6% 0.085 277.9)
-
Step 950
950
#202340
oklch(26.9% 0.054 277.6)
#2B2E5F 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) | #183561 | 0.029 |
| Deuteranopia (no green cones) | #13315E | 0.030 |
| Tritanopia (no blue cones) | #163942 | 0.075 |
| Achromatopsia (no color) | #333333 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B2E5F
#2B2E5F
oklch(32.6% 0.085 277.9)
- #3E3400
#3E3400
oklch(32.6% 0.067 97.3)
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 #2B2E5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.033
- Marine #042E60 ΔE 0.042
- Marine Blue #01386A ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.052
- Gunmetal #293241 ΔE 0.059
- Dark Blue Grey #1F3B4D ΔE 0.059
- Midnight Green #073B4C ΔE 0.068
- Midnight Blue #191970 ΔE 0.070
Use #2B2E5F 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.