#282A3A
Closest named color: Space Cadet (#2B2D42). oklch(29% 0.029 278.9), rgb(40, 42, 58).
Aa
White text reads best on this color (14.16:1).
About this color
#282A3A is a dark close to neutral grey. In OKLCH its lightness is 29%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Space Cadet (#2B2D42), ΔE 0.017 away. White text reads best on it, at 14.16:1.
| Hue family | Neutrals |
| Lightness | dark (29%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.48:1 |
| White text | 14.16:1 |
Values
| HEX | #282A3A |
| RGB | rgb(40, 42, 58) |
| HSL | hsl(233, 18%, 19%) |
| OKLCH | oklch(29% 0.029 278.9) |
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 #282A3A | 14.16:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #282A3A | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #282A3A text on white | 14.16:1 | AAA | Lc 100.9 | Preferred for body text |
| #282A3A text on black | 1.48:1 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E6
oklch(88.5% 0.019 279.5)
-
Step 300
300
#BBBFD7
oklch(80.9% 0.034 278.1)
-
Step 400
400
#989EC3
oklch(70.7% 0.054 277.7)
-
Step 500
500
#8085B4
oklch(63% 0.071 279.4)
-
Step 600
600
#696FA0
oklch(55.7% 0.076 278.2)
-
Step 700
700
#585C89
oklch(49% 0.072 279.5)
-
Step 800
800
#484C6F
oklch(42.8% 0.058 278.6)
-
Step 900
900
#3C3F5A
oklch(37.7% 0.046 279)
-
Step 950
950 (this color)
#282A3A
oklch(29% 0.029 278.9)
#282A3A 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) | #252C3B | 0.008 |
| Deuteranopia (no green cones) | #252A3A | 0.005 |
| Tritanopia (no blue cones) | #242D2F | 0.027 |
| Achromatopsia (no color) | #2B2B2B | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282A3A
#282A3A
oklch(29% 0.029 278.9)
- #2F2C1B
#2F2C1B
oklch(29.1% 0.029 99.4)
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 #282A3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.017
- Oxford Blue #1B263B ΔE 0.027
- Gunmetal #293241 ΔE 0.027
- Dark #1B2431 ΔE 0.034
- Jet #212529 ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.057
- Onyx #343A40 ΔE 0.058
Use #282A3A 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.