#282E5A
Closest named color: Prussian Blue (#1D3557). oklch(32% 0.078 275.2), rgb(40, 46, 90).
Aa
White text reads best on this color (12.89:1).
About this color
#282E5A is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.078 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.026 away. White text reads best on it, at 12.89:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.62:1 |
| White text | 12.89:1 |
Values
| HEX | #282E5A |
| RGB | rgb(40, 46, 90) |
| HSL | hsl(233, 38%, 25%) |
| OKLCH | oklch(32% 0.078 275.2) |
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 #282E5A | 12.89:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #282E5A | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #282E5A text on white | 12.89:1 | AAA | Lc 98.9 | Preferred for body text |
| #282E5A text on black | 1.62:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CFD7FC
oklch(88.5% 0.052 275.7)
-
Step 300
300
#AFBCFD
oklch(80.9% 0.093 275.4)
-
Step 400
400
#8797FC
oklch(70.8% 0.148 275.2)
-
Step 500
500
#6C79F9
oklch(63.1% 0.189 275.2)
-
Step 600
600
#575EE8
oklch(55.7% 0.205 275.3)
-
Step 700
700
#474CCA
oklch(49.1% 0.191 275.1)
-
Step 800
800
#3A3FA3
oklch(42.6% 0.158 275.2)
-
Step 900
900
#313781
oklch(37.6% 0.123 275.3)
-
Step 950
950 (this color)
#282E5A
oklch(32% 0.078 275.2)
#282E5A 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) | #1B345C | 0.023 |
| Deuteranopia (no green cones) | #163059 | 0.023 |
| Tritanopia (no blue cones) | #12373F | 0.069 |
| Achromatopsia (no color) | #323232 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282E5A
#282E5A
oklch(32% 0.078 275.2)
- #3D3200
#3D3200
oklch(32% 0.066 95.6)
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 #282E5A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.026
- Marine #042E60 ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.043
- Marine Blue #01386A ΔE 0.047
- Gunmetal #293241 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.053
- Midnight Green #073B4C ΔE 0.061
- Oxford Blue #1B263B ΔE 0.063
Use #282E5A 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.