#282D3C
Closest named color: Space Cadet (#2B2D42). oklch(29.9% 0.028 270.3), rgb(40, 45, 60).
Aa
White text reads best on this color (13.71:1).
About this color
#282D3C is a dark close to neutral grey. In OKLCH its lightness is 30%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Space Cadet (#2B2D42), ΔE 0.013 away. White text reads best on it, at 13.71:1.
| Hue family | Neutrals |
| Lightness | dark (30%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.53:1 |
| White text | 13.71:1 |
Values
| HEX | #282D3C |
| RGB | rgb(40, 45, 60) |
| HSL | hsl(225, 20%, 20%) |
| OKLCH | oklch(29.9% 0.028 270.3) |
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 #282D3C | 13.71:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #282D3C | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #282D3C text on white | 13.71:1 | AAA | Lc 100.3 | Preferred for body text |
| #282D3C text on black | 1.53:1 | 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
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E6
oklch(88.5% 0.019 269.1)
-
Step 300
300
#B8C0D7
oklch(80.9% 0.034 270.4)
-
Step 400
400
#94A0C3
oklch(70.8% 0.053 270.2)
-
Step 500
500
#7988B4
oklch(63.1% 0.069 269.8)
-
Step 600
600
#62719F
oklch(55.5% 0.074 270)
-
Step 700
700
#525F88
oklch(49.2% 0.068 270.3)
-
Step 800
800
#434D6F
oklch(42.6% 0.058 271.2)
-
Step 900
900
#38405A
oklch(37.6% 0.046 270.9)
-
Step 950
950 (this color)
#282D3C
oklch(29.9% 0.028 270.3)
#282D3C 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) | #282E3D | 0.003 |
| Deuteranopia (no green cones) | #272D3C | 0.002 |
| Tritanopia (no blue cones) | #233032 | 0.025 |
| Achromatopsia (no color) | #2D2D2D | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282D3C
#282D3C
oklch(29.9% 0.028 270.3)
- #332D1D
#332D1D
oklch(29.9% 0.028 89.8)
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 #282D3C, 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 0.017
- Oxford Blue #1B263B ΔE 0.033
- Dark #1B2431 ΔE 0.042
- Jet #212529 ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.048
- Onyx #343A40 ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.050
Use #282D3C 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.