#282E40
Closest named color: Space Cadet (#2B2D42). oklch(30.4% 0.034 270.1), rgb(40, 46, 64).
Aa
White text reads best on this color (13.50:1).
About this color
#282E40 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.034 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.007 away. White text reads best on it, at 13.50:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.55:1 |
| White text | 13.50:1 |
Values
| HEX | #282E40 |
| RGB | rgb(40, 46, 64) |
| HSL | hsl(225, 23%, 20%) |
| OKLCH | oklch(30.4% 0.034 270.1) |
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 #282E40 | 13.50:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #282E40 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #282E40 text on white | 13.50:1 | AAA | Lc 100.0 | Preferred for body text |
| #282E40 text on black | 1.55:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D3D9E8
oklch(88.5% 0.022 268.4)
-
Step 300
300
#B6C0DB
oklch(80.9% 0.04 269.4)
-
Step 400
400
#919FC9
oklch(70.7% 0.064 270.4)
-
Step 500
500
#7687BC
oklch(63.1% 0.083 270.3)
-
Step 600
600
#5F70A8
oklch(55.5% 0.09 270.4)
-
Step 700
700
#4E5E90
oklch(49.1% 0.083 269.7)
-
Step 800
800
#404D75
oklch(42.7% 0.069 269.6)
-
Step 900
900
#36405E
oklch(37.6% 0.053 269.6)
-
Step 950
950 (this color)
#282E40
oklch(30.4% 0.034 270.1)
#282E40 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) | #283041 | 0.006 |
| Deuteranopia (no green cones) | #262D40 | 0.005 |
| Tritanopia (no blue cones) | #213234 | 0.032 |
| Achromatopsia (no color) | #2E2E2E | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282E40
#282E40
oklch(30.4% 0.034 270.1)
- #352E1A
#352E1A
oklch(30.3% 0.034 90.9)
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 #282E40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.007
- Gunmetal #293241 ΔE 0.013
- Oxford Blue #1B263B ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.043
- Dark #1B2431 ΔE 0.047
- Onyx #343A40 ΔE 0.047
- Jet #212529 ΔE 0.049
Use #282E40 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.