#282C3E
Closest named color: Space Cadet (#2B2D42). oklch(29.7% 0.033 274.5), rgb(40, 44, 62).
Aa
White text reads best on this color (13.81:1).
About this color
#282C3E is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.033 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.009 away. White text reads best on it, at 13.81:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.52:1 |
| White text | 13.81:1 |
Values
| HEX | #282C3E |
| RGB | rgb(40, 44, 62) |
| HSL | hsl(229, 22%, 20%) |
| OKLCH | oklch(29.7% 0.033 274.5) |
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 #282C3E | 13.81:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #282C3E | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #282C3E text on white | 13.81:1 | AAA | Lc 100.4 | Preferred for body text |
| #282C3E text on black | 1.52:1 | 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
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D4D8E8
oklch(88.4% 0.022 274.7)
-
Step 300
300
#B8BFDB
oklch(80.8% 0.04 274.4)
-
Step 400
400
#949EC8
oklch(70.6% 0.063 274.3)
-
Step 500
500
#7B86BA
oklch(63.1% 0.079 274.7)
-
Step 600
600
#646FA7
oklch(55.6% 0.088 274.7)
-
Step 700
700
#535D8F
oklch(49.2% 0.081 274.4)
-
Step 800
800
#444C74
oklch(42.8% 0.067 274.6)
-
Step 900
900
#393F5E
oklch(37.6% 0.054 275.1)
-
Step 950
950 (this color)
#282C3E
oklch(29.7% 0.033 274.5)
#282C3E 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) | #272E3F | 0.006 |
| Deuteranopia (no green cones) | #252C3E | 0.005 |
| Tritanopia (no blue cones) | #222F32 | 0.029 |
| Achromatopsia (no color) | #2D2D2D | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282C3E
#282C3E
oklch(29.7% 0.033 274.5)
- #322D19
#322D19
oklch(29.7% 0.034 95.8)
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 #282C3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.009
- Gunmetal #293241 ΔE 0.020
- Oxford Blue #1B263B ΔE 0.031
- Dark #1B2431 ΔE 0.041
- Jet #212529 ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.050
- Onyx #343A40 ΔE 0.053
Use #282C3E 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.