#282D42
Closest named color: Space Cadet (#2B2D42). oklch(30.2% 0.039 273.6), rgb(40, 45, 66).
Aa
White text reads best on this color (13.59:1).
About this color
#282D42 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.039 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.005 away. White text reads best on it, at 13.59:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.54:1 |
| White text | 13.59:1 |
Values
| HEX | #282D42 |
| RGB | rgb(40, 45, 66) |
| HSL | hsl(228, 25%, 21%) |
| OKLCH | oklch(30.2% 0.039 273.6) |
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 #282D42 | 13.59:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #282D42 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #282D42 text on white | 13.59:1 | AAA | Lc 100.1 | Preferred for body text |
| #282D42 text on black | 1.54:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D3D8EB
oklch(88.4% 0.027 274.1)
-
Step 300
300
#B7BFDF
oklch(80.9% 0.046 274.3)
-
Step 400
400
#929ECF
oklch(70.8% 0.073 273.7)
-
Step 500
500
#7785C2
oklch(63% 0.094 273.6)
-
Step 600
600
#606EAF
oklch(55.6% 0.102 273.4)
-
Step 700
700
#505C96
oklch(49.1% 0.094 273.6)
-
Step 800
800
#414B7A
oklch(42.6% 0.079 273.5)
-
Step 900
900
#373F62
oklch(37.7% 0.061 273.3)
-
Step 950
950 (this color)
#282D42
oklch(30.2% 0.039 273.6)
#282D42 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) | #262F43 | 0.007 |
| Deuteranopia (no green cones) | #242D41 | 0.007 |
| Tritanopia (no blue cones) | #213134 | 0.035 |
| Achromatopsia (no color) | #2E2E2E | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282D42
#282D42
oklch(30.2% 0.039 273.6)
- #352E17
#352E17
oklch(30.2% 0.038 93)
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 #282D42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.005
- Gunmetal #293241 ΔE 0.018
- Oxford Blue #1B263B ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.045
- Dark #1B2431 ΔE 0.047
- Jet #212529 ΔE 0.050
- Onyx #343A40 ΔE 0.051
Use #282D42 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.