#282C3A
Closest named color: Space Cadet (#2B2D42). oklch(29.5% 0.026 272.3), rgb(40, 44, 58).
Aa
White text reads best on this color (13.89:1).
About this color
#282C3A is a dark close to neutral grey. In OKLCH its lightness is 30%, its chroma 0.026. 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 13.89:1.
| Hue family | Neutrals |
| Lightness | dark (30%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.51:1 |
| White text | 13.89:1 |
Values
| HEX | #282C3A |
| RGB | rgb(40, 44, 58) |
| HSL | hsl(227, 18%, 19%) |
| OKLCH | oklch(29.5% 0.026 272.3) |
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 #282C3A | 13.89:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #282C3A | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #282C3A text on white | 13.89:1 | AAA | Lc 100.5 | Preferred for body text |
| #282C3A text on black | 1.51:1 | 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
#E8EAF0
oklch(93.7% 0.008 271.3)
-
Step 200
200
#D5D9E5
oklch(88.6% 0.017 271.2)
-
Step 300
300
#B9C0D5
oklch(80.9% 0.031 271)
-
Step 400
400
#969FC0
oklch(70.7% 0.049 273.1)
-
Step 500
500
#7C87B0
oklch(63% 0.063 272.8)
-
Step 600
600
#65719C
oklch(55.6% 0.069 272)
-
Step 700
700
#545E85
oklch(49% 0.064 272.8)
-
Step 800
800
#454D6C
oklch(42.6% 0.053 272.9)
-
Step 900
900
#3A4058
oklch(37.6% 0.042 273.4)
-
Step 950
950 (this color)
#282C3A
oklch(29.5% 0.026 272.3)
#282C3A 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) | #282D3B | 0.003 |
| Deuteranopia (no green cones) | #262C3A | 0.003 |
| Tritanopia (no blue cones) | #232F31 | 0.024 |
| Achromatopsia (no color) | #2C2C2C | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #282C3A
#282C3A
oklch(29.5% 0.026 272.3)
- #312C1E
#312C1E
oklch(29.4% 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 #282C3A, 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 0.021
- Oxford Blue #1B263B ΔE 0.031
- Jet #212529 ΔE 0.038
- Dark #1B2431 ΔE 0.038
- Onyx #343A40 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.054
Use #282C3A 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.