#282B3D
Closest named color: Space Cadet (#2B2D42). oklch(29.4% 0.033 276.8), rgb(40, 43, 61).
Aa
White text reads best on this color (13.97:1).
About this color
#282B3D is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.033 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.012 away. White text reads best on it, at 13.97:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.50:1 |
| White text | 13.97:1 |
Values
| HEX | #282B3D |
| RGB | rgb(40, 43, 61) |
| HSL | hsl(231, 21%, 20%) |
| OKLCH | oklch(29.4% 0.033 276.8) |
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 #282B3D | 13.97:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #282B3D | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #282B3D text on white | 13.97:1 | AAA | Lc 100.6 | Preferred for body text |
| #282B3D 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
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D5D8E8
oklch(88.5% 0.022 277.5)
-
Step 300
300
#BABFDA
oklch(80.9% 0.038 277.2)
-
Step 400
400
#969EC8
oklch(70.8% 0.062 276.3)
-
Step 500
500
#7D85BA
oklch(63.1% 0.08 277.2)
-
Step 600
600
#666EA6
oklch(55.5% 0.087 276.9)
-
Step 700
700
#555C8E
oklch(49.1% 0.08 276.9)
-
Step 800
800
#464B74
oklch(42.7% 0.068 277.8)
-
Step 900
900
#3A3F5D
oklch(37.7% 0.052 276.3)
-
Step 950
950 (this color)
#282B3D
oklch(29.4% 0.033 276.8)
#282B3D 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) | #262D3E | 0.007 |
| Deuteranopia (no green cones) | #242B3D | 0.007 |
| Tritanopia (no blue cones) | #232E31 | 0.029 |
| Achromatopsia (no color) | #2C2C2C | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282B3D
#282B3D
oklch(29.4% 0.033 276.8)
- #312D19
#312D19
oklch(29.6% 0.034 98.3)
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 #282B3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.012
- Gunmetal #293241 ΔE 0.023
- Oxford Blue #1B263B ΔE 0.028
- Dark #1B2431 ΔE 0.038
- Jet #212529 ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.053
- Onyx #343A40 ΔE 0.055
Use #282B3D 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.