#282B6E
Closest named color: Marine (#042E60). oklch(32.9% 0.114 276.2), rgb(40, 43, 110).
Aa
White text reads best on this color (12.64:1).
About this color
#282B6E is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.114 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.046 away. White text reads best on it, at 12.64:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.66:1 |
| White text | 12.64:1 |
Values
| HEX | #282B6E |
| RGB | rgb(40, 43, 110) |
| HSL | hsl(237, 47%, 29%) |
| OKLCH | oklch(32.9% 0.114 276.2) |
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 #282B6E | 12.64:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #282B6E | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #282B6E text on white | 12.64:1 | AAA | Lc 98.3 | Preferred for body text |
| #282B6E text on black | 1.66:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D0D7F9
oklch(88.5% 0.047 276.2)
-
Step 300
300
#B1BCF8
oklch(80.8% 0.086 276.3)
-
Step 400
400
#8A97F5
oklch(70.6% 0.138 276.3)
-
Step 500
500
#707BF1
oklch(63.2% 0.175 276.2)
-
Step 600
600
#5A60DF
oklch(55.5% 0.19 276.2)
-
Step 700
700
#4B4FC2
oklch(49.2% 0.176 276.3)
-
Step 800
800
#3D419D
oklch(42.7% 0.147 276.3)
-
Step 900
900 (this color)
#282B6E
oklch(32.9% 0.114 276.2)
-
Step 950
950
#1E2249
oklch(27.1% 0.072 276.1)
#282B6E 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) | #003670 | 0.042 |
| Deuteranopia (no green cones) | #00306D | 0.038 |
| Tritanopia (no blue cones) | #003B48 | 0.097 |
| Achromatopsia (no color) | #333333 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282B6E
#282B6E
oklch(32.9% 0.114 276.2)
- #403500
#403500
oklch(33.1% 0.068 96.2)
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 #282B6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.046
- Marine Blue #01386A ΔE 0.047
- Midnight Blue #191970 ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.055
- Twilight Blue #0A437A ΔE 0.069
- Space Cadet #2B2D42 ΔE 0.080
- Royal #0C1793 ΔE 0.082
- Dark Blue Grey #1F3B4D ΔE 0.083
Use #282B6E 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.