#282D79
Closest named color: Marine Blue (#01386A). oklch(34.3% 0.127 274.6), rgb(40, 45, 121).
Aa
White text reads best on this color (12.05:1).
About this color
#282D79 is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.127 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.051 away. White text reads best on it, at 12.05:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.74:1 |
| White text | 12.05:1 |
Values
| HEX | #282D79 |
| RGB | rgb(40, 45, 121) |
| HSL | hsl(236, 50%, 32%) |
| OKLCH | oklch(34.3% 0.127 274.6) |
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 #282D79 | 12.05:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #282D79 | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #282D79 text on white | 12.05:1 | AAA | Lc 97.2 | Preferred for body text |
| #282D79 text on black | 1.74:1 | 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 900.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CED7FD
oklch(88.4% 0.053 274.8)
-
Step 300
300
#AEBCFF
oklch(80.9% 0.096 274.9)
-
Step 400
400
#8597FF
oklch(70.8% 0.153 274.4)
-
Step 500
500
#6A78FD
oklch(63.1% 0.196 274.8)
-
Step 600
600
#545DEC
oklch(55.6% 0.212 274.4)
-
Step 700
700
#454BCD
oklch(49% 0.197 274.4)
-
Step 800
800
#393FA6
oklch(42.8% 0.163 274.6)
-
Step 900
900 (this color)
#282D79
oklch(34.3% 0.127 274.6)
-
Step 950
950
#1C214D
oklch(27.1% 0.08 274.8)
#282D79 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) | #003A7B | 0.043 |
| Deuteranopia (no green cones) | #003377 | 0.036 |
| Tritanopia (no blue cones) | #00404E | 0.106 |
| Achromatopsia (no color) | #363636 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282D79
#282D79
oklch(34.3% 0.127 274.6)
- #443800
#443800
oklch(34.3% 0.071 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 #282D79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.051
- Midnight Blue #191970 ΔE 0.057
- Marine #042E60 ΔE 0.058
- Twilight Blue #0A437A ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.068
- Royal #0C1793 ΔE 0.071
- Dark Slate Blue #483D8B ΔE 0.076
- Cobalt #1E488F ΔE 0.078
Use #282D79 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.