#282D39
Closest named color: Space Cadet (#2B2D42). oklch(29.8% 0.023 267.3), rgb(40, 45, 57).
Aa
White text reads best on this color (13.77:1).
About this color
#282D39 is a dark close to neutral grey. In OKLCH its lightness is 30%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Space Cadet (#2B2D42), ΔE 0.018 away. White text reads best on it, at 13.77:1.
| Hue family | Neutrals |
| Lightness | dark (30%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.52:1 |
| White text | 13.77:1 |
Values
| HEX | #282D39 |
| RGB | rgb(40, 45, 57) |
| HSL | hsl(222, 18%, 19%) |
| OKLCH | oklch(29.8% 0.023 267.3) |
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 #282D39 | 13.77:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #282D39 | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #282D39 text on white | 13.77:1 | AAA | Lc 100.4 | Preferred for body text |
| #282D39 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
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D5D9E3
oklch(88.5% 0.014 268.5)
-
Step 300
300
#B9C1D3
oklch(81% 0.027 266.6)
-
Step 400
400
#94A0BD
oklch(70.6% 0.045 267.5)
-
Step 500
500
#7A89AC
oklch(63.1% 0.056 266.7)
-
Step 600
600
#637397
oklch(55.7% 0.059 265.9)
-
Step 700
700
#526081
oklch(49.1% 0.056 266.6)
-
Step 800
800
#444E69
oklch(42.6% 0.047 268.6)
-
Step 900
900
#394155
oklch(37.6% 0.036 267.7)
-
Step 950
950 (this color)
#282D39
oklch(29.8% 0.023 267.3)
#282D39 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) | #292E3A | 0.004 |
| Deuteranopia (no green cones) | #282C39 | 0.003 |
| Tritanopia (no blue cones) | #242F31 | 0.020 |
| Achromatopsia (no color) | #2D2D2D | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282D39
#282D39
oklch(29.8% 0.023 267.3)
- #322D20
#322D20
oklch(29.8% 0.023 89.5)
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 #282D39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.018
- Gunmetal #293241 ΔE 0.019
- Oxford Blue #1B263B ΔE 0.034
- Jet #212529 ΔE 0.038
- Dark #1B2431 ΔE 0.040
- Onyx #343A40 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.050
- Midnight Green #073B4C ΔE 0.054
Use #282D39 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.