#282C55
Closest named color: Prussian Blue (#1D3557). oklch(31.2% 0.073 277.1), rgb(40, 44, 85).
Aa
White text reads best on this color (13.27:1).
About this color
#282C55 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.073 and its hue 277°. 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 13.27:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.58:1 |
| White text | 13.27:1 |
Values
| HEX | #282C55 |
| RGB | rgb(40, 44, 85) |
| HSL | hsl(235, 36%, 25%) |
| OKLCH | oklch(31.2% 0.073 277.1) |
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 #282C55 | 13.27:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #282C55 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #282C55 text on white | 13.27:1 | AAA | Lc 99.5 | Preferred for body text |
| #282C55 text on black | 1.58:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D1D7F9
oklch(88.5% 0.047 277.5)
-
Step 300
300
#B2BCF9
oklch(80.9% 0.087 277.1)
-
Step 400
400
#8C97F5
oklch(70.7% 0.137 277.2)
-
Step 500
500
#717AF2
oklch(63.2% 0.177 276.8)
-
Step 600
600
#5C5FE0
oklch(55.6% 0.192 277.1)
-
Step 700
700
#4C4EC3
oklch(49.2% 0.179 276.9)
-
Step 800
800
#3E409D
oklch(42.6% 0.148 277.2)
-
Step 900
900
#34387D
oklch(37.7% 0.115 276.9)
-
Step 950
950 (this color)
#282C55
oklch(31.2% 0.073 277.1)
#282C55 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) | #1B3157 | 0.022 |
| Deuteranopia (no green cones) | #172E54 | 0.023 |
| Tritanopia (no blue cones) | #17353C | 0.065 |
| Achromatopsia (no color) | #303030 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282C55
#282C55
oklch(31.2% 0.073 277.1)
- #3A3000
#3A3000
oklch(31.1% 0.064 96.5)
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 #282C55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.036
- Marine #042E60 ΔE 0.041
- Gunmetal #293241 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.054
- Marine Blue #01386A ΔE 0.054
- Oxford Blue #1B263B ΔE 0.054
- Midnight Green #073B4C ΔE 0.061
Use #282C55 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.