#282B3C
Closest named color: Space Cadet (#2B2D42). oklch(29.4% 0.031 276.5), rgb(40, 43, 60).
Aa
White text reads best on this color (13.99:1).
About this color
#282B3C is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.031 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.013 away. White text reads best on it, at 13.99:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.50:1 |
| White text | 13.99:1 |
Values
| HEX | #282B3C |
| RGB | rgb(40, 43, 60) |
| HSL | hsl(231, 20%, 20%) |
| OKLCH | oklch(29.4% 0.031 276.5) |
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 #282B3C | 13.99:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #282B3C | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #282B3C text on white | 13.99:1 | AAA | Lc 100.6 | Preferred for body text |
| #282B3C text on black | 1.50:1 | 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
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E7
oklch(88.4% 0.021 276.9)
-
Step 300
300
#BABFD9
oklch(80.9% 0.037 276.9)
-
Step 400
400
#969EC6
oklch(70.7% 0.059 276)
-
Step 500
500
#7D86B7
oklch(63.2% 0.075 276)
-
Step 600
600
#676FA3
oklch(55.7% 0.081 276.7)
-
Step 700
700
#555D8C
oklch(49.2% 0.076 275.9)
-
Step 800
800
#464C72
oklch(42.8% 0.063 276.5)
-
Step 900
900
#3B3F5C
oklch(37.7% 0.05 277.7)
-
Step 950
950 (this color)
#282B3C
oklch(29.4% 0.031 276.5)
#282B3C 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) | #262D3D | 0.007 |
| Deuteranopia (no green cones) | #252B3C | 0.005 |
| Tritanopia (no blue cones) | #232E31 | 0.027 |
| Achromatopsia (no color) | #2C2C2C | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282B3C
#282B3C
oklch(29.4% 0.031 276.5)
- #312C1A
#312C1A
oklch(29.3% 0.031 94.4)
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 #282B3C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.013
- Gunmetal #293241 ΔE 0.023
- Oxford Blue #1B263B ΔE 0.028
- Dark #1B2431 ΔE 0.037
- Jet #212529 ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.054
- Onyx #343A40 ΔE 0.055
Use #282B3C 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.