#282C5F
Closest named color: Prussian Blue (#1D3557). oklch(31.9% 0.089 276.7), rgb(40, 44, 95).
Aa
White text reads best on this color (12.99:1).
About this color
#282C5F is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.089 and its hue 277°. 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 12.99:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.61:1 |
| White text | 12.99:1 |
Values
| HEX | #282C5F |
| RGB | rgb(40, 44, 95) |
| HSL | hsl(236, 41%, 26%) |
| OKLCH | oklch(31.9% 0.089 276.7) |
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 #282C5F | 12.99:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #282C5F | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #282C5F text on white | 12.99:1 | AAA | Lc 99.1 | Preferred for body text |
| #282C5F text on black | 1.61:1 | 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
#E4E9FF
oklch(93.7% 0.03 275.6)
-
Step 200
200
#CFD7FF
oklch(88.6% 0.056 276.3)
-
Step 300
300
#B0BBFF
oklch(80.8% 0.097 276.9)
-
Step 400
400
#8995FF
oklch(70.7% 0.154 276.8)
-
Step 500
500
#6E76FF
oklch(63.1% 0.2 276.5)
-
Step 600
600
#5955F8
oklch(55.7% 0.235 276.6)
-
Step 700
700
#4A43D8
oklch(49.1% 0.219 276.7)
-
Step 800
800
#3C39AF
oklch(42.8% 0.181 276.6)
-
Step 900
900
#32338A
oklch(37.7% 0.141 276.7)
-
Step 950
950 (this color)
#282C5F
oklch(31.9% 0.089 276.7)
#282C5F 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) | #133361 | 0.030 |
| Deuteranopia (no green cones) | #0B2F5E | 0.033 |
| Tritanopia (no blue cones) | #0E3741 | 0.077 |
| Achromatopsia (no color) | #313131 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282C5F
#282C5F
oklch(31.9% 0.089 276.7)
- #3C3200
#3C3200
oklch(31.8% 0.066 96.9)
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 #282C5F, 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 0.037
- Marine Blue #01386A ΔE 0.047
- Space Cadet #2B2D42 ΔE 0.053
- Gunmetal #293241 ΔE 0.061
- Midnight Blue #191970 ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.063
- Midnight Green #073B4C ΔE 0.070
Use #282C5F 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.