#282C54
Closest named color: Prussian Blue (#1D3557). oklch(31.1% 0.071 277.1), rgb(40, 44, 84).
Aa
White text reads best on this color (13.30:1).
About this color
#282C54 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.071 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 13.30:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.57:1 |
| White text | 13.30:1 |
Values
| HEX | #282C54 |
| RGB | rgb(40, 44, 84) |
| HSL | hsl(235, 35%, 24%) |
| OKLCH | oklch(31.1% 0.071 277.1) |
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 #282C54 | 13.30:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #282C54 | 1.57:1 | Fails | Lc 0.0 | Not readable |
| #282C54 text on white | 13.30:1 | AAA | Lc 99.6 | Preferred for body text |
| #282C54 text on black | 1.57:1 | 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
#B2BCF7
oklch(80.8% 0.084 276.9)
-
Step 400
400
#8C97F4
oklch(70.7% 0.136 277.2)
-
Step 500
500
#727AEF
oklch(63% 0.173 277.3)
-
Step 600
600
#5C60DE
oklch(55.6% 0.188 277)
-
Step 700
700
#4C4EC0
oklch(49% 0.175 277)
-
Step 800
800
#3E419C
oklch(42.7% 0.145 276.9)
-
Step 900
900
#34387C
oklch(37.6% 0.113 276.9)
-
Step 950
950 (this color)
#282C54
oklch(31.1% 0.071 277.1)
#282C54 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) | #1C3156 | 0.021 |
| Deuteranopia (no green cones) | #182E53 | 0.022 |
| Tritanopia (no blue cones) | #18343B | 0.063 |
| Achromatopsia (no color) | #2F2F2F | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282C54
#282C54
oklch(31.1% 0.071 277.1)
- #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 #282C54, 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 0.034
- Marine #042E60 ΔE 0.042
- Gunmetal #293241 ΔE 0.044
- Oxford Blue #1B263B ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.053
- Marine Blue #01386A ΔE 0.055
- Midnight Green #073B4C ΔE 0.060
Use #282C54 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.