#282B6B
Closest named color: Marine (#042E60). oklch(32.7% 0.109 276.5), rgb(40, 43, 107).
Aa
White text reads best on this color (12.74:1).
About this color
#282B6B is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.109 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.043 away. White text reads best on it, at 12.74:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.64:1 |
| White text | 12.74:1 |
Values
| HEX | #282B6B |
| RGB | rgb(40, 43, 107) |
| HSL | hsl(237, 46%, 29%) |
| OKLCH | oklch(32.7% 0.109 276.5) |
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 #282B6B | 12.74:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #282B6B | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #282B6B text on white | 12.74:1 | AAA | Lc 98.5 | Preferred for body text |
| #282B6B text on black | 1.64:1 | 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
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D1D7F8
oklch(88.5% 0.046 277.3)
-
Step 300
300
#B2BDF6
oklch(81% 0.082 275.9)
-
Step 400
400
#8B98F2
oklch(70.7% 0.132 276.2)
-
Step 500
500
#717CED
oklch(63.2% 0.168 276.3)
-
Step 600
600
#5B62DB
oklch(55.7% 0.182 276.3)
-
Step 700
700
#4B50BE
oklch(49.1% 0.169 276.2)
-
Step 800
800
#3E429A
oklch(42.7% 0.141 276.7)
-
Step 900
900 (this color)
#282B6B
oklch(32.7% 0.109 276.5)
-
Step 950
950
#1E2248
oklch(27% 0.07 276.2)
#282B6B 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) | #00356D | 0.042 |
| Deuteranopia (no green cones) | #00306A | 0.039 |
| Tritanopia (no blue cones) | #003A46 | 0.095 |
| Achromatopsia (no color) | #323232 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282B6B
#282B6B
oklch(32.7% 0.109 276.5)
- #3F3400
#3F3400
oklch(32.7% 0.067 96)
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 #282B6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.043
- Marine Blue #01386A ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.051
- Midnight Blue #191970 ΔE 0.052
- Twilight Blue #0A437A ΔE 0.070
- Space Cadet #2B2D42 ΔE 0.075
- Dark Blue Grey #1F3B4D ΔE 0.079
- Gunmetal #293241 ΔE 0.082
Use #282B6B 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.