#282D3A
Closest named color: Space Cadet (#2B2D42). oklch(29.8% 0.025 268.4), rgb(40, 45, 58).
Aa
White text reads best on this color (13.75:1).
About this color
#282D3A is a dark close to neutral grey. In OKLCH its lightness is 30%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Space Cadet (#2B2D42), ΔE 0.016 away. White text reads best on it, at 13.75:1.
| Hue family | Neutrals |
| Lightness | dark (30%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.52:1 |
| White text | 13.75:1 |
Values
| HEX | #282D3A |
| RGB | rgb(40, 45, 58) |
| HSL | hsl(223, 18%, 19%) |
| OKLCH | oklch(29.8% 0.025 268.4) |
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 #282D3A | 13.75:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #282D3A | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #282D3A text on white | 13.75:1 | AAA | Lc 100.3 | Preferred for body text |
| #282D3A 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D4D9E4
oklch(88.5% 0.016 266.3)
-
Step 300
300
#B8C0D4
oklch(80.8% 0.03 268.3)
-
Step 400
400
#94A0BF
oklch(70.7% 0.047 268.5)
-
Step 500
500
#7A89AE
oklch(63.2% 0.059 267.5)
-
Step 600
600
#63729A
oklch(55.6% 0.065 268.4)
-
Step 700
700
#526084
oklch(49.2% 0.061 267.8)
-
Step 800
800
#434E6B
oklch(42.7% 0.05 268.2)
-
Step 900
900
#394157
oklch(37.7% 0.039 269)
-
Step 950
950 (this color)
#282D3A
oklch(29.8% 0.025 268.4)
#282D3A 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) | #292E3B | 0.004 |
| Deuteranopia (no green cones) | #272C3A | 0.004 |
| Tritanopia (no blue cones) | #233031 | 0.024 |
| Achromatopsia (no color) | #2D2D2D | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282D3A
#282D3A
oklch(29.8% 0.025 268.4)
- #322D1F
#322D1F
oklch(29.8% 0.025 90.7)
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 #282D3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.016
- Gunmetal #293241 ΔE 0.018
- Oxford Blue #1B263B ΔE 0.034
- Jet #212529 ΔE 0.039
- Dark #1B2431 ΔE 0.041
- Onyx #343A40 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.053
Use #282D3A 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.