#282F60
Closest named color: Prussian Blue (#1D3557). oklch(32.7% 0.086 274.5), rgb(40, 47, 96).
Aa
White text reads best on this color (12.60:1).
About this color
#282F60 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.086 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.029 away. White text reads best on it, at 12.60:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.66:1 |
| White text | 12.60:1 |
Values
| HEX | #282F60 |
| RGB | rgb(40, 47, 96) |
| HSL | hsl(233, 41%, 27%) |
| OKLCH | oklch(32.7% 0.086 274.5) |
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 #282F60 | 12.60:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #282F60 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #282F60 text on white | 12.60:1 | AAA | Lc 98.4 | Preferred for body text |
| #282F60 text on black | 1.66:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D1D8F2
oklch(88.5% 0.037 273.7)
-
Step 300
300
#B4BEEB
oklch(80.9% 0.065 275.1)
-
Step 400
400
#8D9BE1
oklch(70.6% 0.104 274.8)
-
Step 500
500
#7281D9
oklch(63.1% 0.133 274.6)
-
Step 600
600
#5B69C6
oklch(55.6% 0.144 274.3)
-
Step 700
700
#4B57AB
oklch(49.1% 0.134 274.3)
-
Step 800
800
#3E488B
oklch(42.8% 0.111 274.4)
-
Step 900
900 (this color)
#282F60
oklch(32.7% 0.086 274.5)
-
Step 950
950
#1F2441
oklch(27.1% 0.054 274.8)
#282F60 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) | #183662 | 0.026 |
| Deuteranopia (no green cones) | #11315F | 0.027 |
| Tritanopia (no blue cones) | #0C3A42 | 0.077 |
| Achromatopsia (no color) | #333333 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282F60
#282F60
oklch(32.7% 0.086 274.5)
- #403300
#403300
oklch(32.6% 0.067 93.2)
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 #282F60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.029
- Marine #042E60 ΔE 0.038
- Marine Blue #01386A ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.057
- Gunmetal #293241 ΔE 0.059
- Midnight Green #073B4C ΔE 0.065
- Twilight Blue #0A437A ΔE 0.069
Use #282F60 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.