#282F58
Closest named color: Prussian Blue (#1D3557). oklch(32.1% 0.073 274.2), rgb(40, 47, 88).
Aa
White text reads best on this color (12.82:1).
About this color
#282F58 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.073 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.023 away. White text reads best on it, at 12.82:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.63:1 |
| White text | 12.82:1 |
Values
| HEX | #282F58 |
| RGB | rgb(40, 47, 88) |
| HSL | hsl(231, 38%, 25%) |
| OKLCH | oklch(32.1% 0.073 274.2) |
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 #282F58 | 12.82:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #282F58 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #282F58 text on white | 12.82:1 | AAA | Lc 98.8 | Preferred for body text |
| #282F58 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CFD7FA
oklch(88.4% 0.049 275.2)
-
Step 300
300
#AFBDF9
oklch(80.9% 0.086 274.1)
-
Step 400
400
#8798F6
oklch(70.6% 0.139 274.5)
-
Step 500
500
#6B7CF3
oklch(63.2% 0.177 274.1)
-
Step 600
600
#5561E1
oklch(55.5% 0.193 274.2)
-
Step 700
700
#464FC4
oklch(49.1% 0.18 274.3)
-
Step 800
800
#39429E
oklch(42.7% 0.148 274.1)
-
Step 900
900
#30397E
oklch(37.7% 0.116 273.9)
-
Step 950
950 (this color)
#282F58
oklch(32.1% 0.073 274.2)
#282F58 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) | #1E345A | 0.019 |
| Deuteranopia (no green cones) | #193057 | 0.020 |
| Tritanopia (no blue cones) | #14383F | 0.065 |
| Achromatopsia (no color) | #323232 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282F58
#282F58
oklch(32.1% 0.073 274.2)
- #3E3200
#3E3200
oklch(32.1% 0.066 94.3)
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 #282F58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.023
- Space Cadet #2B2D42 ΔE 0.039
- Marine #042E60 ΔE 0.040
- Gunmetal #293241 ΔE 0.045
- Marine Blue #01386A ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.048
- Midnight Green #073B4C ΔE 0.056
- Oxford Blue #1B263B ΔE 0.061
Use #282F58 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.